Washington, D.C., circa 1932. "Shoreham Hotel from across Calvert Street." 8x10 inch acetate negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1937. "Acacia Mutual Life Insurance Co. building, exterior, Louisiana Avenue." 8x10 acetate negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1937. "Lobby, Acacia Mutual Life Insurance Co. building." 8x10 inch nitrate negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1940. "U.S. Capitol exteriors. Dome of Capitol through trees at night." 8x10 acetate negative by Theodor Horydczak. View full size.

Cleveland circa 1931. "View of Terminal Tower at night, with eagle on right." 8x10 inch acetate negative by Theodor Horydczak. View full size.

Prince George's County, Maryland, circa 1940. "Electric Institute of Washington, Potomac Electric Power Co. Stores of electric dealers. Hyattsville Hardware." 8x10 inch acetate negative by Theodor Horydczak. View full size.

September 12, 1946. Washington, D.C. "Showroom at Superior Motors. Client: Griffith-Consumers Co." Step into the FUTURE today with the Packard Clipper! 8x10 acetate negative by Theodor Horydczak. View full size.

Maryland circa 1930. "Conowingo Hydroelectric Plant. Turbine hall, seven turbines in Line II." 8x10 nitrate negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1937. "U.S. Labor Department and Interstate Commerce Commission Building. Passageway between ICC and Departmental Auditorium sections." 8x10 acetate negative by Theodor Horydczak. View full size.

April 1954. Washington, D.C. "Hahn Shoes, exterior, 14th and G streets N.W." 8x10 inch acetate negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1925. "Lincoln Memorial. View of statue through columns." 8x10 glass negative by Theodor Horydczak. View full size.

Circa 1935. "Water scenes. Water and Sky I. Made for Mr. Sharpe of Potomac Electric Power Co." 5x7 nitrate negative by Theodor Horydczak. View full size.

Prince George's County, Maryland, circa 1940. "Electric Institute of Washington. Cameo Theatre, Mount Rainier lecture." Reddy Kilowatt wants you to Just Say No to coal and gas. Safety negative by Theodor Horydczak. View full size.

Washington circa 1935. "U.S. Capitol exteriors. Dome of Capitol and park in winter." 5x7 nitrate negative by Theodor Horydczak. View full size.

        UPDATE: This was the Electrik Maid Bakery at 7000 Carroll Avenue in Takoma Park.

Montgomery County, Md., circa 1950. "Potomac Electric Power Co. -- Commercial kitchens, restaurants and lighting. Takoma Park Bakery." We're guessing these are not gluten-free. 8x10 acetate negative by Theodor Horydczak. View full size.