U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...
See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More
U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...
See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More
1214 Reddour Street (House), Pittsburgh, Allegheny County, PA
Written data includes photocopies of location maps & floor plans. Significance: 1214 Reddour Street is representative of the larger scale brick houses that were built after a devastating fire leveled the surrou... More
Episcopal Church of the Good Shepherd, Corner of Johnston and Second a...
Significance: This artfully designed rustic church survives as one of the last vestiges of a well-to-do river front neighborhood that existed in the Hazelwood section of Pittsburgh before the massive industrial... More
U.S. Steel Homestead Works, Main Roll Shop, Along Monongahela River, H...
Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation's most important steel mills and the Mon Valley's status as the pre-eminent iron and steel ... More
Byers-Lyons House, 901 Ridge Street, Pittsburgh, Allegheny County, PA
Survey number: HABS PA-1158 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
U.S. Steel Edgar Thomson Works, Auxiliary Buildings & Shops, Along Mon...
Survey number: HAER PA-384-E Building/structure dates: 1892 Initial Construction Building/structure dates: before 1929 Subsequent Work Building/structure dates: 1933 Subsequent Work
U. S. Allegheny Post Office, Ohio Street, Pittsburgh, Allegheny County...
Additional info on LC index card. Significance: The successor to 7 previous structures serving the same purpose. The old Allegheny U.S. Post Office was erected in 1897. A reflection of the French Renaissance pe... More
Emmanuel Protestant Episcopal Church, North & Allegheny Streets, Pitts...
Significance: Very small, more simple and subtle than other works of the period by H.H. Richardson, the church is nevertheless one of his finest later works in the Romanesque style. Survey number: HABS PA-426... More
Croghan House, Stanton Heights, Pittsburgh, Allegheny County, PA
Picryl description: Public domain image of a small palace, chateau, villa, residential historic building, free to use, no copyright restrictions image.
U.S. Allegheny Arsenal, Storehouse No. 2, Pittsburgh, Allegheny County...
Unprocessed Field note material exists for this structure: FN-9 Survey number: HABS PA-8-1-E
Emlenton Bridge, Spanning Allegheny River, Travel Route 38 (Legislativ...
Significance: The existing Emlenton Bridge is significant in the areas of engineering and transportation, specifically for its age, size, type of truss, length of truss for this age, and material. The bridge w... More
Emlenton Bridge, Spanning Allegheny River, Travel Route 38 (Legislativ...
Significance: The existing Emlenton Bridge is significant in the areas of engineering and transportation, specifically for its age, size, type of truss, length of truss for this age, and material. The bridge w... More
Emlenton Bridge, Spanning Allegheny River, Travel Route 38 (Legislativ...
Significance: The existing Emlenton Bridge is significant in the areas of engineering and transportation, specifically for its age, size, type of truss, length of truss for this age, and material. The bridge w... More
U.S. Steel Homestead Works, Harvey Shop, Along Monongahela River, Home...
See also HAER PA-200 for additional documentation. Includes written data (pages 142 through 144). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the ... More
Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...
Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More
Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...
Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More
Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...
Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More
Allegheny Lift Lock No. 4 & Weigh Lock, North shore of Allegheny River...
Significance: The Allegheny Locks were among the few canal-related structures surviving in Pittsburgh. The locks are near the western terminus of the Pennsylvania Canal which has been determined to be of natio... More
Sewickley Bridge, Spanning Ohio River, Sewickley, Allegheny County, PA
Significance: The Bridge is representative of the type of bridge that was being built at the turn of the century. Also significant, because of the attention it had since its inception and resultant completion,... More
Sewickley Bridge, Spanning Ohio River, Sewickley, Allegheny County, PA
Significance: The Bridge is representative of the type of bridge that was being built at the turn of the century. Also significant, because of the attention it had since its inception and resultant completion,... More
Sewickley Bridge, Spanning Ohio River, Sewickley, Allegheny County, PA
Significance: The Bridge is representative of the type of bridge that was being built at the turn of the century. Also significant, because of the attention it had since its inception and resultant completion,... More
Sewickley Bridge, Spanning Ohio River, Sewickley, Allegheny County, PA
Significance: The Bridge is representative of the type of bridge that was being built at the turn of the century. Also significant, because of the attention it had since its inception and resultant completion,... More
Allegheny County Courthouse & Jail, 436 Grant Street (Courthouse), 420...
Significance: A prime example of noted architect Richardson's work in what would come to be known as the "Richardsonian Romanesque Style." The jail is particularly notable as an example of functionalism. Surv... More
Allegheny County Courthouse & Jail, 436 Grant Street (Courthouse), 420...
Significance: A prime example of noted architect Richardson's work in what would come to be known as the "Richardsonian Romanesque Style." The jail is particularly notable as an example of functionalism. Surv... More
Virginia Medical Center, Aspinwall Division, Infirmary Building, 5103 ...
Significance: The Infirmary Building is one of the original structures erected by the United States Veterans' Bureau at Aspinwall in 1924. It is significant for its associations with the Veterans' Bureau's nati... More
Virginia Medical Center, Aspinwall Division, Infirmary Building, 5103 ...
Significance: The Infirmary Building is one of the original structures erected by the United States Veterans' Bureau at Aspinwall in 1924. It is significant for its associations with the Veterans' Bureau's nati... More
Virginia Medical Center, Aspinwall Division, Infirmary Building, 5103 ...
Significance: The Infirmary Building is one of the original structures erected by the United States Veterans' Bureau at Aspinwall in 1924. It is significant for its associations with the Veterans' Bureau's nati... More
Virginia Medical Center, Aspinwall Division, Infirmary Building, 5103 ...
Significance: The Infirmary Building is one of the original structures erected by the United States Veterans' Bureau at Aspinwall in 1924. It is significant for its associations with the Veterans' Bureau's nati... More
Virginia Medical Center, Aspinwall Division, Infirmary Building, 5103 ...
Significance: The Infirmary Building is one of the original structures erected by the United States Veterans' Bureau at Aspinwall in 1924. It is significant for its associations with the Veterans' Bureau's nati... More
Coraopolis Bridge, Spanning Ohio River back channel at Ferree Street &...
See also HAER PA-490 for related documentation. Includes drawings, photographs & written data. Significance: The Coraopolis Bridge comprises two Pennsylvania through truss spans designed by Theodore Cooper and ... More
Coraopolis Bridge, Spanning Ohio River back channel at Ferree Street &...
See also HAER PA-490 for related documentation. Includes drawings, photographs & written data. Significance: The Coraopolis Bridge comprises two Pennsylvania through truss spans designed by Theodore Cooper and ... More
Coraopolis Bridge, Spanning Ohio River back channel at Ferree Street &...
See also HAER PA-490 for related documentation. Includes drawings, photographs & written data. Significance: The Coraopolis Bridge comprises two Pennsylvania through truss spans designed by Theodore Cooper and ... More
Coraopolis Bridge, Spanning Ohio River back channel at Ferree Street &...
See also HAER PA-490 for related documentation. Includes drawings, photographs & written data. Significance: The Coraopolis Bridge comprises two Pennsylvania through truss spans designed by Theodore Cooper and ... More
Coraopolis Bridge, Spanning Ohio River back channel at Ferree Street &...
See also HAER PA-490 for related documentation. Includes drawings, photographs & written data. Significance: The Coraopolis Bridge comprises two Pennsylvania through truss spans designed by Theodore Cooper and ... More
U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...
See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More
U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...
See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More
U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...
See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More
U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...
See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More
U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...
See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More
U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...
See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More
U.S. Steel National Tube Works, Main Pipe Mill Building, Along Mononga...
Survey number: HAER PA-380-A Building/structure dates: 1906 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
U.S. Steel National Tube Works, Main Pipe Mill Building, Along Mononga...
Survey number: HAER PA-380-A Building/structure dates: 1906 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
U.S. Steel National Tube Works, Main Pipe Mill Building, Along Mononga...
Survey number: HAER PA-380-A Building/structure dates: 1906 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Dredge CINCINNATI, Docked on Ohio River at foot of Lighthill Street, P...
Significance: The Cincinnati is a "dipper dredge," particularly suited to the shallow, rocky conditions of American inland waterways. The dredge operated for 78 years on the Ohio River and its tributaries. Th... More
Stewart Company Grain Elevator, 16 West Carson Street, Pittsburgh, All...
Significance: The 1913 elevator replaced an earlier elevator on the same site and was the first concrete grain elevator in Pittsburgh. A rail siding connected the structure to the Panhandle Division of the Penn... More
Stewart Company Grain Elevator, 16 West Carson Street, Pittsburgh, All...
Significance: The 1913 elevator replaced an earlier elevator on the same site and was the first concrete grain elevator in Pittsburgh. A rail siding connected the structure to the Panhandle Division of the Penn... More
Stewart Company Grain Elevator, 16 West Carson Street, Pittsburgh, All...
Significance: The 1913 elevator replaced an earlier elevator on the same site and was the first concrete grain elevator in Pittsburgh. A rail siding connected the structure to the Panhandle Division of the Penn... More
Stewart Company Grain Elevator, 16 West Carson Street, Pittsburgh, All...
Significance: The 1913 elevator replaced an earlier elevator on the same site and was the first concrete grain elevator in Pittsburgh. A rail siding connected the structure to the Panhandle Division of the Penn... More
Stewart Company Grain Elevator, 16 West Carson Street, Pittsburgh, All...
Significance: The 1913 elevator replaced an earlier elevator on the same site and was the first concrete grain elevator in Pittsburgh. A rail siding connected the structure to the Panhandle Division of the Penn... More
Stewart Company Grain Elevator, 16 West Carson Street, Pittsburgh, All...
Significance: The 1913 elevator replaced an earlier elevator on the same site and was the first concrete grain elevator in Pittsburgh. A rail siding connected the structure to the Panhandle Division of the Penn... More
Stewart Company Grain Elevator, 16 West Carson Street, Pittsburgh, All...
Significance: The 1913 elevator replaced an earlier elevator on the same site and was the first concrete grain elevator in Pittsburgh. A rail siding connected the structure to the Panhandle Division of the Penn... More
U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, H...
See also HAER PA-200 for additional documentation. Includes written data (pages 99 through 101). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the n... More
U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, H...
See also HAER PA-200 for additional documentation. Includes written data (pages 99 through 101). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the n... More
U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, H...
See also HAER PA-200 for additional documentation. Includes written data (pages 99 through 101). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the n... More
North Side Point Bridge, Spanning Allegheny River at Point of Pittsbur...
See also HAER PA-3 for additional documentation. Includes written data. Significance: The Manchester Bridge replaced the old wooden Union Bridge, the first bridge erected at the Point and demolished in 1907. B... More
Heidelberg Apartments & Cottages, Braddock Avenue & Waverly Street, Pi...
Significance: Built in 1905, the Old Heidelberg Apartment Building was designed by Frederick G. Scheibler, one of Pittsburgh's most important architects and a pioneer in the modern architectural movement. The a... More
Heidelberg Apartments & Cottages, Braddock Avenue & Waverly Street, Pi...
Significance: Built in 1905, the Old Heidelberg Apartment Building was designed by Frederick G. Scheibler, one of Pittsburgh's most important architects and a pioneer in the modern architectural movement. The a... More
Heidelberg Apartments & Cottages, Braddock Avenue & Waverly Street, Pi...
Significance: Built in 1905, the Old Heidelberg Apartment Building was designed by Frederick G. Scheibler, one of Pittsburgh's most important architects and a pioneer in the modern architectural movement. The a... More
U.S. Steel Duquesne Works, Fuel & Utilities Plant, Along Monongahela R...
See also HAER PA-115 for additional documentation. Includes written data (pages 239 through 248). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More
Allequippa Terrace, 429-433 Robinson Court, 429-433 Robinson Court, Pi...
Picryl description: Public domain image of a historical landmark building, courtyard, 17th, 18th, 19th-century architecture, free to use, no copyright restrictions.
Carnegie, Allegheny County Pennsylvania
25380 U.S. Copyright Office. This record contains unverified data from PGA shelflist card. Associated name on shelflist card: Fowler, T.M.
Farm line map of Allegheny County, Pennsylvania /
Shows municipalities, farm boundaries, farm owners' names, and farm acreages in rural areas. LC Land ownership maps, 704 Includes county inset showing township names and col. ill. of U.S. flag. Available also t... More
Allegheny College, Meadville, Pennsylvania, Panoramic Photograph
H96471 U.S. Copyright Office Copyright deposit; Haines Photo Co.; July 10, 1907. Copyright claimant's address: Conneaut, O. Image was printed laterally reversed.
McArthur Advertising Corporation, 2480 16th Street. Allegheny Metal di...
Public domain photograph of 3d object museum collection, metal, no copyright restrictions image - Picryl description
Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania
Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Drill press operator, Allegheny Ludlum Steel[e] Corp., Brackenridge, P...
Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenri...
Public domain photograph of building construction site, free to use, no copyright restrictions image - Picryl description
Allegheny Court House, Pittsburgh, Pennsylvania, Pennsylvania, 19th ce...
Exterior, elevated view. Stereo copyrighted by S.V. Albee. Unmounted stereograph. Reference copy may be in County Court Houses of the United States microfiche 136 (B2). This record contains unverified, old dat... More
Monongahela Connecting Railroad Company, Y Trestle, South side of Mono...
Significance: Permitted access between the Monongahela Connecting Railroad and former Pittsburgh and Lake Erie Railroad. P&LE was a major hauler of raw materials into and semi-finished steel products from form... More
Monongahela Incline Plane, Connecting North side of Grandview Avenue a...
Significance: The first constructed and oldest passenger incline plane in Pittsburgh, this system retains the 1882 safety brake and bull wheel and 1935 electrical system including drive motors, operating brakes... More
Pennsylvania Railroad, Allegheny River Bridge, River Street vicinity, ...
Survey number: HAER PA-22 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Taylor-Wilson Manufacturing Company, 500 Thompson Avenue, Pittsburgh, ...
Significance: This building is an early example of a concrete "daylight factory," a building type that revolutionized industrial architectural design at the turn-of-the-last-century. Engineer Robert A. Cummings... More
Ninth Avenue Regulator, Ninth Avenue at Youghiogheny River, McKeesport...
Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAE... More
Ninth Avenue Regulator, Ninth Avenue at Youghiogheny River, McKeesport...
Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAE... More
Morse School Annex, Sarah Street between Twenty-fourth & Twenty-fifth ...
Written data includes sketches & photocopies of maps. Significance: The structure is a strange mixture of relatively new and daring structural concepts and a hopelessly outdated exterior shell. It is a "mule" w... More
Virginia Medical Center, Aspinwall Division, Laundry Building, 5103 De...
Significance: The Laundry Building is associated with the continued expansion of the veterans' hospital facility at Aspinwall during the 1920s and 1930s. Constructed in 1936, the building served as the facility... More
U.S. Steel National Tube Works, Auxiliary Buildings, Along Monongahela...
Survey number: HAER PA-380-E Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
U.S. Steel National Tube Works, Auxiliary Buildings, Along Monongahela...
Survey number: HAER PA-380-E Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Allegheny Portage Railroad, Staple Bend Tunnel, Conemaugh Borough, Eas...
Significance: The Staple Bend Tunnel is proclaimed to be the first railroad tunnel in the United States. Survey number: HAER PA-240 Building/structure dates: ca. 1830 Initial Construction National Register o... More
U.S. Allegheny Arsenal, N. C. O. Quarters, Thirty-ninth Street, Pittsb...
Unprocessed Field note material exists for this structure: FN-9, FN-11 Survey number: HABS PA-8-1-D
Broadhead Manor, Northern corner of Broadhead Fording & Mazette Roads,...
Significance: Broadhead Manor, first occupied in February 1944, is among Pittsburgh's earliest public housing projects. At the beginning of World War II, the tremendous demand for shipbuilding resulted in a 6,0... More
Henry S. Linn House, North Allegheny Street, Bellefonte, Centre County...
Unprocessed Field note material exists for this structure: FN-14 Survey number: HABS PA-8-5 Building/structure dates: 1810 Initial Construction Building/structure dates: 1841 Subsequent Work Building/struct... More
Henry S. Linn House, North Allegheny Street, Bellefonte, Centre County...
Unprocessed Field note material exists for this structure: FN-14 Survey number: HABS PA-8-5 Building/structure dates: 1810 Initial Construction Building/structure dates: 1841 Subsequent Work Building/struct... More
Allequippa Terrace, Wadsworth Hall, Burrows & Wadsworth Streets, Pitts...
Survey number: HABS PA-6222-B Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
North Side Market, Federal & East Ohio Streets, Pittsburgh, Allegheny ...
Public domain scan of an architecture diagram, architectural drawing, building plan, or design, free to use, no copyright restrictions - Picryl description.
Gulf Filling Station, Corner of Route 51 & West Liberty Avenue, Pittsb...
Written data includes site & floor plans. Significance: The Gulf Filling Station (Meineke Garage) is a good example of early 20th century transportation-related architecture. This building is an unusual example... More
Braeburn Alloy Steel, Braeburn Road at Allegheny River, Lower Burrell,...
Significance: For much of its history Braeburn successfully maintained its share of the specialty steel market without expensive retooling and large outlays of capital for equipment. Much of the original equip... More
Point Bridge, Spanning Monongahela River at Point of Pittsburgh (No. 9...
See also HAER PA-5 for additional documentation. Includes photographs & written data. Survey number: HABS PA-604 Building/structure dates: 1925-1927 Initial Construction
Carnegie Institute of Technology, Administration Building, Frew Street...
Survey number: HABS PA-1172 Building/structure dates: before 1963 Subsequent Work
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Virginia Medical Center, Aspinwall Division, Attendant's Quarters, 510...
Significance: The Attendents' Quarters is one of the original structures erected by the United States Veterans' Bureau at Aspinwall in 1924. The building originally housed the attendants who worked at the Hospi... More
Virginia Medical Center, Aspinwall Division, Attendant's Quarters, 510...
Significance: The Attendents' Quarters is one of the original structures erected by the United States Veterans' Bureau at Aspinwall in 1924. The building originally housed the attendants who worked at the Hospi... More
Virginia Medical Center, Aspinwall Division, Attendant's Quarters, 510...
Significance: The Attendents' Quarters is one of the original structures erected by the United States Veterans' Bureau at Aspinwall in 1924. The building originally housed the attendants who worked at the Hospi... More
John F. Singer House, 1318 Singer Place, Pittsburgh, Allegheny County,...
Significance: One of the finest and most elaborate Pittsburgh mansions built in the Gothic Revival style. Survey number: HABS PA-433 Building/structure dates: ca. 1869 Initial Construction
John F. Singer House, 1318 Singer Place, Pittsburgh, Allegheny County,...
Significance: One of the finest and most elaborate Pittsburgh mansions built in the Gothic Revival style. Survey number: HABS PA-433 Building/structure dates: ca. 1869 Initial Construction
U.S. Steel Homestead Works, Machine Shop No. 2, Along Monongahela Rive...
See also HAER PA-200 for additional documentation. Includes written data (pages 138 through 141). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the ... More
U.S. Steel Homestead Works, Machine Shop No. 2, Along Monongahela Rive...
See also HAER PA-200 for additional documentation. Includes written data (pages 138 through 141). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the ... More
U.S. Steel Homestead Works, Open Hearth Steelmaking Plant, Along Monon...
Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation's most important steel mills and the Mon Valley's status as the pre-eminent iron and steel ... More
Mesta 160-Inch Plate Mill, Defense Plant Corporation, Homestead Works,...
See also HAER PA-200-F for additional documentation. Includes photographs. See also HAER PA-343 for related documentation. Includes written data. Significance: Rated with an annual capacity of six hundred thous... More