Washington, D.C., circa 1937. "Federal Reserve Building, Constitution Avenue. Front and right side." 8x10 inch acetate negative by Theodor Horydczak. View full size.

November 2, 1931. Washington, D.C. "Navy airship U.S.S. Akron over the Lincoln Memorial." 4x5 inch nitrate negative by Theodor Horydczak. View full size.

THE AKRON'S VISIT.

        The giant airship Akron arrived yesterday to salute the Capital on its first flight, after having been officially dedicated to Navy service on Navy Day. Accompanied by its older, slimmer sister, the Los Angeles, the Akron, bearing 108 men, circled over the city, dipped in salute to the White House, and gave Washingtonians their first chance to see the world's largest and newest dirigible. (Washington Post, 11.3.31)

        UPDATE: The aviation experts among us aver that the photo shows the USS Los Angeles, not the Akron. In which case the date would be November 2, 1931, when both airships overflew the capital.

August 19, 1932. The Lincoln Memorial in Washington, D.C. "The Navy airship Akron appeared in the morning and after circling the city released several of her small fighting airplanes over Hoover Field. These were later drawn into the hangar constructed on the interior of the airship." 4x5 inch nitrate negative by Theodor Horydczak. View full size.

August 4, 1935. Montgomery County, Maryland. "Bathing girls at Glen Echo amusement park." 4x5 inch acetate negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1940. "Potomac Electric Power Co. -- Air Conditioning and Lighting -- Chas. Schwartz & Son, jewelers." 8x10 acetate negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1940. "Potomac Electric Power Co. -- Air Conditioning and Lighting -- Chas. Schwartz & Son, jewelers." 8x10 acetate negative by Theodor Horydczak. View full size.

Chesapeake Bay (Maryland) ca. 1950. "Water scenes. Boat in foreground, lighthouse in distance. Made for Mr. Sharpe of Potomac Electric Power Co." Ragged Point Light in the Potomac River. 5x7 inch nitrate negative by Theodor Horydczak. View full size.

Bethesda, Maryland, circa 1940. "National Naval Medical Center, front from left." Part of the hospital complex known today as Walter Reed National Military Medical Center. 8x10 inch acetate negative by Theodor Horydczak. View full size.

Montgomery County, Maryland, circa 1940. "Bowman Bros. grist mill, Gaithersburg." 8x10 inch acetate negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1948. "Trinity College. Small alcove in library on campus." 8x10 inch acetate negative by Theodor Horydczak. View full size.

        Enlighten the people generally, and tyranny and oppression of body and mind will vanish like evil spirits at the dawn of day.

-- Thomas Jefferson

Washington, D.C., circa 1950. "Thomas Jefferson Reading Room, Adams Building, Library of Congress." 8x10 negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1935. "Potomac Electric Power Co. service station building, 10th Street and Florida Avenue. Linemen's truck." 8x10 inch acetate negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1937. "American Security & Trust Company, 15th Street & Pennsylvania Avenue N.W." Points of interest include the streetcar switch tower (examples of which can also be seen here, here and here), and emergency call box with colored globe. Safety negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1930. "Rowhouses in Petworth." 8x10 inch acetate negative by Theodor Horydczak. View full size.

Washington, D.C., circa 1954. "General Accounting Office, G Street N.W. -- International Nickel Co., installation of louvers." 8x10 acetate negative by that impresario of esoteric architectural imagery, Theodor Horydczak. View full size.