Potomac Electric Power Co. miscellaneous. Lt. Bishop, copy
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Washington Gas Light Co. Testimonial on use of gas (portrait for adver...
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Potomac Electric Power Co. air conditioning and lighting. Mode interio...
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Potomac Electric Power Co. apartments and kitchens. Cafritz apartments...
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Potomac Electric Power Co. air conditioning and lighting. Chas. Schwar...
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Potomac Electric Power Co. Buzzard Point plant. Exterior of Buzzard Po...
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Potomac Electric Power Co. electric appliances. Radio
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Potomac Electric Power Co. electric appliances. Vacuum cleaner
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Washington Gas Light Co. Mr. Gordon of Washington Gas Light Co. IV
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Potomac Electric Power Co. apartments and kitchens. Close-up of entran...
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Potomac Electric Power Co. Benning plant. Machinery I
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Potomac Electric Power Co. Building. Potomac Electric Power Co. model ...
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Potomac Electric Power Co. Building. Control board on 9th floor of Pot...
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Potomac Electric Power Co. Buzzard Point plant. Damaged machine parts ...
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Potomac Electric Power Co. Benning plant. Damaged dynamo at Benning pl...
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Potomac Electric Power Co. substations. Bethesda substation VI
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Potomac Electric Power Co. substations. Bunker Hill Rd. substation I
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Washington Gas Light Co. Display for electric competition
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Washington Gas Light Co. Testimonial on use of gas (portrait for adver...
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Potomac Electric Power Co. Benning plant. Frequency changer view at Be...
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Potomac Electric Power Co. miscellaneous. Electric carpenter tools I
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Potomac Electric Power Co. Benning plant. Frequency changer view at Be...
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Potomac Electric Power Co. Alexandria plant. Remetal damaged parts IV
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Potomac Electric Power Co. Buzzard Point plant. Men in front of machin...
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Potomac Electric Power Co. Buzzard Point plant. Damaged machine parts ...
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Potomac Electric Power Co. substations. Bunker Hill Rd. substation IV
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Potomac Electric Power Co. Washer and iron window display
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Potomac Electric Power Co. apartments and kitchens. Apartments at 1530...
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Potomac Electric Power Co. apartments and kitchens. Charleston House k...
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Potomac Electric Power Co. commercial kitchens, restaurants and lighti...
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Potomac Electric Power Co. Buzzard Point plant. Damaged electric motor...
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Potomac Electric Power Co. Building. Post transformer explosion IV
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Potomac Electric Power Co. Building. Sales office I
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Potomac Electric Power Co. commercial kitchens, restaurants and lighti...
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Potomac Electric Power Co. apartments and kitchens. J St. apartment in...
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Potomac Electric Power Co. I St. substation by night XIII
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Potomac Electric Power Co. Line construction to Indian Head I
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Potomac Electric Power Co. air conditioning and lighting. Keystone Res...
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Potomac Electric Power Co. Building. Transformer explosion XIII
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Potomac Electric Power Co., manholes and cables. Detail of PEPCO cable...
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Potomac Electric Power Co. air conditioning and lighting. Zirkin furs ...
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Potomac Electric Power Co. Building. Emergency at PEPCO
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Potomac Electric Power Co. apartments and kitchens. Charleston House k...
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Potomac Electric Power Co. miscellaneous. PEPCO chart III
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Potomac Electric Power Co. Buzzard Point plant. Coal pile at night at ...
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Potomac Electric Power Co. Power plant interior
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Potomac Electric Power Co. apartments and kitchens. Warwick Apartments...
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Potomac Electric Power Co. air conditioning and lighting. Del Rio rest...
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Potomac Electric Power Co. Buzzard Point plant. Construction of founda...
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Potomac Electric Power Co. miscellaneous. Copy negative of old PEPCO p...
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Potomac Electric Power Co. air conditioning and lighting. Porter St. d...
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Potomac Electric Power Co. electric appliances. Toaster
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. Eureka vacuum cleaner
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. model home. Kitchen in model home
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Potomac Electric Power Co. model home. Bedroom in model home I
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Potomac Electric Power Co. houses. Smith house in Mount Rainier, Md.
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Potomac Electric Power Co. houses. House in Petworth
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Potomac Electric Power Co. houses. House in Bethesda, Md. II
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. Building. Store interior of Potomac Electri...
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Potomac Electric Power Co. houses. Two-story brick house
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Potomac Electric Power Co. houses. House with porch on left side
Item title devised. The Theodor Horydczak Collection is a collection of photographs taken by Theodor Horydczak (1890-1971) a Polish-born American photographer who worked in Washington D.C. from the 1910s to th... More
Potomac Electric Power Co. Building. Christmas 1939, Potomac Electric ...
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. Building. Guards of Potomac Electric Power ...
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Potomac Electric Power Co. miscellaneous. Trucks and clam shell digger...
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Potomac Electric Power Co. Building. Air raid equipments and personnel...
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Potomac Electric Power Co. Building. Air raid equipments and personnel...
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Potomac Electric Power Co. Buzzard Point plant. Coal handling machines...
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Potomac Electric Power Co. Building. U.S.A. award presentation, PEPCO ...
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. Building. Window on conservation I
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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. 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. substations. Substation no. 38 window displ...
Item title devised. The Theodor Horydczak Collection is a collection of photographs taken by Theodor Horydczak (1890-1971) a Polish-born American photographer who worked in Washington D.C. from the 1910s to th... More
Potomac Electric Power Co. substations. Substation no. 38 window displ...
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Potomac Electric Power Co. air conditioning and lighting. St. Francis ...
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Potomac Electric Power Co. Three cable line at Bladensburg and Montana...
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Potomac Electric Power Co. Building. Power for Industry display
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Potomac Electric Power Co. air conditioning and lighting. Kay's Drug S...
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Potomac Electric Power Co. apartments and kitchens. Kitchen at 103 Ell...
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Potomac Electric Power Co. Alexandria plant. Aerial view of Alexandria...
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Potomac Electric Power Co. apartments and kitchens. Exterior of house ...
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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. Thomas J. Fi...
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Potomac Electric Power Co. Benning plant. Generator unit no. 13 at Ben...
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Potomac Electric Power Co. Benning plant. Generator unit no. 13 at Ben...
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Potomac Electric Power Co. air conditioning and lighting. American Sec...
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. Benning plant. Exterior of Benning plant II...
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Potomac Electric Power Co. Alexandria plant. Worn parts on turbine no....
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Potomac Electric Power Co. Alexandria plant. Worn parts on turbine no....
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Long Island Light and Power Co., Mineola, Long Island. Sales display
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Jericho Water District. Exterior
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Long Island Lighting Co. Gas meter repair II
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Atlantic City Electric Co. service building, Glassboro, New Jersey. So...
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Long Island Lighting Co., Hicksville. Wires I
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Long Island Lighting Co., Port Jefferson. General exterior II
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Long Island Lighting Co., Hicksville. Geide's, water heaters
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Public Service Corporation, Newark, New Jersey. Model from above II
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Long Island Lighting Co. Meadowbrook office building
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Long Island Lighting Co. Upjohn
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Public Service of New Jersey. Linden plant IV
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