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Potomac Electric Power Co. Plaster models of electrical history at Potomac Electric Power Co. XI

Potomac Electric Power Co. Buzzard Point plant. Feed water regulator for boiler no. 6 at Buzzard Point plant I

Potomac Electric Power Co. Buzzard Point plant. Three 50,000 kilowatt turbines from crane, Buzzard Point plant

Potomac Electric Power Co. Building. Transformer explosion VIII

Potomac Electric Power Co. Benning plant. Construction for frequency changer at Benning plant III

Potomac Electric Power Co. Power line near Washington Grove VI

Electric Institute of Washington, Potomac Electric Power Co. Building. Cost of operation II

Potomac Electric Power Co. Buzzard Point plant. Construction work inside Buzzard Point plant VII

Electric Institute of Washington, Potomac Electric Power Co. Air conditioning displays III

Electric Institute of Washington, Potomac Electric Power Co. Building. Store or window displays, Flameless cooking display

Potomac Electric Power Co. I St. substation by night V

Potomac Electric Power Co. Benning plant. View of opening in generator space (in mirror) I

Potomac Electric Power Co. electric appliances. Floor lamp

Potomac Electric Power Co. Buzzard Point plant. Buzzard Point plant from Naval airport II

Potomac Electric Power Co. Control board of PEPCO III

Potomac Electric Power Co. Building. Control board on 9th floor of Potomac Electric Power Co. IV

Potomac Electric Power Co. Benning plant. Sun rays in Benning plant

Potomac Electric Power Co. Line construction to Indian Head II

Potomac Electric Power Co. Building. Model home window display, G.E. refrigerator I

Electric Institute of Washington, Potomac Electric Power Co. Stores of electric dealers X

Electric Institute of Washington, Potomac Electric Power Co. Building. Electric Institute kitchen II

Potomac Electric Power Co. Buzzard Point plant. Construction work inside Buzzard Point plant V

Electric Institute of Washington, Potomac Electric Power Co. Building. Appliances display, Electric Institute VII

Electric Institute of Washington, Potomac Electric Power Co. Building. Window fans display

Potomac Electric Power Co. Alexandria plant. Drive shaft showing damage I

Potomac Electric Power Co. air conditioning and lighting. Hill residence, living room

Potomac Electric Power Co. Line construction to Indian Head III

Potomac Electric Power Co. Plaster models of electrical history at Potomac Electric Power Co. X

Potomac Electric Power Co. Alexandria plant. Broken wheel I

Potomac Electric Power Co. Benning plant. Damage of machine I

Potomac Electric Power Co. Buzzard Point plant. Construction work inside Buzzard Point plant XIII

Electric Institute of Washington, Potomac Electric Power Co. Stores of electric dealers VIII

Electric Institute of Washington, Potomac Electric Power Co. Lecture in auditorium

Potomac Electric Power Co. Benning plant. Interior of Benning plant IV

Potomac Electric Power Co. Building. Meter reader group

Potomac Electric Power Co. Buzzard Point plant. New or second turbine installation at Buzzard Point plant II

Potomac Electric Power Co. electric appliances. Electric kitchen

Electric Institute of Washington, Potomac Electric Power Co. Building. Ironer II

Potomac Electric Power Co. Buzzard Point plant. Closeups of turbine made for G.E. calendar II

Potomac Electric Power Co. Building. Front entrance of Potomac Electric Power Co. at night, no autos

Potomac Electric Power Co. Board grid with layout of power flow III

Potomac Electric Power Co. Building. Night exterior of Potomac Electric Power Co. with Christmas decorations I

Potomac Electric Power Co. Building. Meter reader's uniform

Potomac Electric Power Co. miscellaneous. Transportation plaque, Potomac Electric Power Co

Potomac Electric Power Co. Benning plant. Transformer, Indian Head

Potomac Electric Power Co. Benning plant. Machinery II

Electric Institute of Washington, Potomac Electric Power Co. Building. Stage display with washer and range

Potomac Electric Power Co. electric appliances. Smiling model baking bread II

Electric Institute of Washington, Potomac Electric Power Co. Building. Cost of operation II

Electric Institute of Washington, Potomac Electric Power Co. Air conditioning displays V

Potomac Electric Power Co. Benning plant. Interior of Benning plant I

Potomac Electric Power Co. Plaster models of electrical history at Potomac Electric Power Co. XVIII

Potomac Electric Power Co. miscellaneous. Copy of portrait of G. Archer

Electric Institute of Washington, Potomac Electric Power Co. Building. Close-up of stove burner controls

Potomac Electric Power Co. Benning plant. Machinery I

Electric Institute of Washington, Potomac Electric Power Co. Building. Gauge to measure electricity cost I

Potomac Electric Power Co. electric appliances. Draining kettle into sink

Potomac Electric Power Co. Power line near Washington Grove V

Potomac Electric Power Co. Buzzard Point plant. Buzzard Point plant from across river III

Potomac Electric Power Co. Plaster models of electrical history at Potomac Electric Power Co. XVI

Potomac Electric Power Co. Buzzard Point plant. New or second turbine installation at Buzzard Point plant III

Potomac Electric Power Co. Plaster models of electrical history at Potomac Electric Power Co. XVIII

Potomac Electric Power Co. Line construction to Indian Head I

Potomac Electric Power Co. Board grid with layout of power flow II

Potomac Electric Power Co. electric appliances. Model preparing breakfast

Electric Institute of Washington, Potomac Electric Power Co. Building. Westinghouse refrigerator

Potomac Electric Power Co. Benning plant. Frequency changer view at Benning plant IV

Potomac Electric Power Co. Benning plant. Foundation construction at Benning plant II

Potomac Electric Power Co. air conditioning and lighting. S & W cafeteria

Potomac Electric Power Co. Building. Exterior of Potomac Electric Power Co. at night II

Potomac Electric Power Co. Buzzard Point plant. Switchboard at Buzzard Point plant

Potomac Electric Power Co. Building. Potomac Electric Power Co. store interior V

Potomac Electric Power Co. air conditioning and lighting. Loew's Fox Theatre II

Potomac Electric Power Co. Benning plant. Construction for frequency changer at Benning plant II

Electric Institute of Washington, Potomac Electric Power Co. Building. Targeting safety I

Electric Institute of Washington, Potomac Electric Power Co. Building. Better light for better sight display

Potomac Electric Power Co. Buzzard Point plant. Closeups of turbine made for G.E. calendar I

Potomac Electric Power Co. Alexandria plant. View of Potomac Electric Power Co. Alexandria plant, 23" lens II

Potomac Electric Power Co. substations. Proposed site for new substation

Electric Institute of Washington, Potomac Electric Power Co. Building. Electrical Headquarters diorama on use of light

Electric Institute of Washington, Potomac Electric Power Co. Building. Window fans exhibit

Potomac Electric Power Co. electric appliances. Test tubes showing cooking losses at different cooking temperatures II

Electric Institute of Washington, Potomac Electric Power Co. Building. Stage in auditorium during lecture

Potomac Electric Power Co. Benning plant. Exterior of Benning plant

Potomac Electric Power Co. substations. Interior of substation at 18th and G. St. N.W.

Electric Institute of Washington, Potomac Electric Power Co. Air conditioning displays IV

Potomac Electric Power Co. Buzzard Point plant. Construction work inside Buzzard Point plant X

Potomac Electric Power Co. Building. Women's club room in Potomac Electric Power Co. Building I

Potomac Electric Power Co. Buzzard Point plant. Piping shots at Buzzard Point plant IV

Potomac Electric Power Co. electric appliances. Mrs. Coombs picnic party I

Electric Institute of Washington, Potomac Electric Power Co. Building. Electric Institute kitchen III

Potomac Electric Power Co. Building. Sales office I

Electric Institute of Washington, Potomac Electric Power Co. Building. Bride, Electric Institute

Potomac Electric Power Co. Buzzard Point plant. Buzzard Point plant from across river III

Potomac Electric Power Co. Fresco work in Potomac Electric Power Co. Building II

Electric Institute of Washington, Potomac Electric Power Co. Building. Electric Institute entry I

Electric Institute of Washington, Potomac Electric Power Co. Building. Actors at Electric Institute I

Potomac Electric Power Co. Buzzard Point plant. Coal pile during day at Buzzard Point plant

Potomac Electric Power Co. Washer and iron window display

Electric Institute of Washington, Potomac Electric Power Co. Air conditioning displays II