View of the Petersburg Gas Works / negative by T.H. O'Sullivan, positi...
Photograph showing the damage to the gas works building and smoke stack caused by Union Army bombs. Illus. in: Gardner's photographic sketch book of the war / Alexander Gardner. Washington, D.C. : Philp & Solo... More
[Foundation for retort house, construction for Detroit City Gas Compan...
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Potomac Electric Power Co. Plaster models of electrical history at Pot...
The Theodor Horydczak Collection documents the architecture and social life of the Washington DC metropolitan area in the 1920s, 1930s, and 1940s.
Potomac Electric Power Co. apartments and kitchens. Cafritz Greenway a...
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Potomac Electric Power Co. Building. Model home reception hall of Poto...
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Potomac Electric Power Co. old electric appliances. Six small pictures...
Potomac Electric Power Company (PEPCO) is a publicly traded utility company that provides electric service to customers in the Washington D.C. metropolitan area, including the District of Columbia and parts of ... More
Potomac Electric Power Co. Benning plant. Front view of Potomac Electr...
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Potomac Electric Power Co. View of PEPCO power plant I
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Potomac Electric Power Co. Plaster models of electrical history at Pot...
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Potomac Electric Power Co. Benning plant. Main gate of Benning plant, ...
The Theodor Horydczak Collection documents the architecture and social life of the Washington DC metropolitan area in the 1920s, 1930s, and 1940s.
Potomac Electric Power Co. substations. Powerlines II
Potomac Electric Power Company (PEPCO) is a publicly traded utility company that provides electric service to customers in the Washington D.C. metropolitan area, including the District of Columbia and parts of ... More
Potomac Electric Power Co. Buzzard Point plant. Construction work insi...
The Theodor Horydczak Collection documents the architecture and social life of the Washington DC metropolitan area in the 1920s, 1930s, and 1940s.
Potomac Electric Power Co. service station, 10th and Florida. Construc...
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Potomac Electric Power Co. commercial kitchens, restaurants and lighti...
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Potomac Electric Power Co. Benning plant. Frequency changer at Benning...
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Potomac Electric Power Co. I St. substation by night XI
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Potomac Electric Power Co. commercial kitchens, restaurants and lighti...
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Potomac Electric Power Co. miscellaneous. PEPCO chart XVI
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Potomac Electric Power Co. miscellaneous. Manhole crew and truck I
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Potomac Electric Power Co. Buzzard Point plant. Three 50,000 kilowatt ...
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Potomac Electric Power Co. Benning plant. Turbine blades at Benning pl...
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Potomac Electric Power Co. Benning plant. Aerial view of Benning plant...
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Potomac Electric Power Co. Buzzard Point plant. Damaged machine parts ...
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Washington Gas Light Co. Mr. Gordon of Washington Gas Light Co. II
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Potomac Electric Power Co. Benning plant. Benning plant rear view
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Potomac Electric Power Co. apartments and kitchens. North Englewood ap...
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Potomac Electric Power Co. Building. Control board on 9th floor of Pot...
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Potomac Electric Power Co. substations. Substation on Wisconsin Ave. w...
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Potomac Electric Power Co. Building. Diploma presentation by Red Cross...
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Potomac Electric Power Co. I St. substation by night I
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Potomac Electric Power Co., manhole and cables. Corroded cable near Fi...
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Potomac Electric Power Co. substations. 18th St. substation II
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Potomac Electric Power Co. Benning plant. Damaged dynamo at Benning pl...
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Potomac Electric Power Co. Buzzard Point plant. Construction work insi...
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Potomac Electric Power Co. Benning plant. Turbine blades at Benning pl...
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Potomac Electric Power Co. miscellaneous. CBS station in Wheaton III
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Potomac Electric Power Co. electric appliances. Window front of A.B.C....
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Potomac Electric Power Co. Alexandria plant. Magnetic fan made for ele...
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Potomac Electric Power Co. Buzzard Point plant. Officials at new turbi...
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Potomac Electric Power Co. Power line near Washington Grove I
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Potomac Electric Power Co. electric appliances. Window display with Su...
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Potomac Electric Power Co. service station. Service station on Florida...
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Potomac Electric Power Co. apartments and kitchens. Kitchen at 2700 26...
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Potomac Electric Power Co. houses and kitchens. Kitchen at 14 E. Lelan...
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Potomac Electric Power Co. electric appliances. PEPCO kitchen preparat...
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Potomac Electric Power Co. service station building, 10th and Florida ...
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Potomac Electric Power Co. I St. substation by night II
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Potomac Electric Power Co. air conditioning and lighting. Riggs Bank, ...
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Potomac Electric Power Co. Buzzard Point plant. Interior of Buzzard Po...
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Potomac Electric Power Co. Benning plant. High tension wires
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Potomac Electric Power Co. I St. substation by night
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Potomac Electric Power Co. I St. substation by night IX
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Potomac Electric Power Co. apartments and kitchens. Eddystone Apartmen...
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Potomac Electric Power Co. Building. Exterior of Potomac Electric Powe...
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Potomac Electric Power Co. air conditioning and lighting. Wilbur-Roger...
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Potomac Electric Power Co. substations. Substation on Wisconsin Ave.
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Potomac Electric Power Co. electric appliances. Telechron electric clo...
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Potomac Electric Power Co. Buzzard Point plant. Exterior of Buzzard Po...
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Potomac Electric Power Co. substations. Substation exterior VI
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Potomac Electric Power Co. electric appliances. Telechron electric clo...
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Potomac Electric Power Co. substations. Federal Courthouse
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Potomac Electric Power Co. air conditioning and lighting. Columbia Ban...
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Potomac Electric Power Co. electric appliances. Lionel electric engine
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Potomac Electric Power Co. electric appliances. Desk lamp
Potomac Electric Power Company (PEPCO) is a publicly traded utility company that provides electric service to customers in the Washington D.C. metropolitan area, including the District of Columbia and parts of ... More
Potomac Electric Power Co. electric appliances. Iron II
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Potomac Electric Power Co. electric appliances. Bottle and bottle warm...
Potomac Electric Power Company (PEPCO) is a publicly traded utility company that provides electric service to customers in the Washington D.C. metropolitan area, including the District of Columbia and parts of ... More
Potomac Electric Power Co. houses. Two-story house with porch with awn...
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Potomac Electric Power Co. houses. Hohn house in Forestville, Md. II
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Potomac Electric Power Co. houses. Marino house in Bethesda, Md. I
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Potomac Electric Power Co. houses. Brooks house in Chevy Chase, Md.
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Potomac Electric Power Co. houses. House in College Park, Md. I
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Potomac Electric Power Co. Building. Christmas 1940, Potomac Electric ...
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Potomac Electric Power Co. Buzzard Point plant. Additions to Buzzard P...
Subject card annotation: made for Mr. Miller. The Theodor Horydczak Collection is a collection of photographs taken by Theodor Horydczak (1890-1971) a Polish-born American photographer who worked in Washington... More
Potomac Electric Power Co. Buzzard Point plant. Coal handling machines...
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Potomac Electric Power Co. Building. Home economics, lecture on nutrit...
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Potomac Electric Power Co. substations. Substation window display: Civ...
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Potomac Electric Power Co. substations. Substation no. 38 window displ...
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Potomac Electric Power Co. substations. Substation window display: Let...
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Washington Gas Light Co. New Washington Gas Light Co. Building II
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Potomac Electric Power Co. miscellaneous. Fire sprays and fire fightin...
Subject card annotation: made for Mr. Reed, PEPCO. The Theodor Horydczak Collection is a collection of photographs taken by Theodor Horydczak (1890-1971) a Polish-born American photographer who worked in Washi... More
Potomac Electric Power Co. Benning plant. Flag raising ceremonies at P...
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Potomac Electric Power Co. substations. Substation no. 38 window displ...
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Potomac Electric Power Co. substations. Substation no. 38 window displ...
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Potomac Electric Power Co. Building. 10th & E lobby, after remodeling ...
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Potomac Electric Power Co. air conditioning and lighting. Anacostia li...
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Potomac Electric Power Co. Buzzard Point plant. Generator parts, Buzza...
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Potomac Electric Power Co. commercial kitchens, restaurants and lighti...
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Potomac Electric Power Co. commercial kitchens, restaurants and lighti...
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Potomac Electric Power Co. air conditioning and lighting. Parisian Sho...
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Potomac Electric Power Co. air conditioning and lighting. MacArthur Dr...
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Potomac Electric Power Co. Alexandria plant. Worn parts on turbine no....
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