Washington, D.C., circa 1917. "Union Station." In the distance, a glimpse of a long-vanished Capitol Hill landmark, the Washington Brewery smokestack advertising SPARKLING ALE. Harris & Ewing glass negative. View full size.

New York, 1952. "Martha Raye in rehearsal for her television show, All-Star Revue." The Big Mouth had a decent set of gams as well as gums. Photo by Charlotte Brooks for "Perpetual Commotion" in Look magazine. View full size.

JoeH has identified the mystery man as Washington inventor and television pioneer Charles Francis Jenkins (1867-1934), pictured here with what might be considered an early flat-panel video display, its 48-pixel-square grid composed of small neon lamps.

Washington, D.C., in 1928. "NO CAPTION" is the caption for this one; again we turn to the crowd-source wisdom of the Shorpy masses to inquire: What the heck is it? (Close-up here.) Harris & Ewing Collection glass negative. View full size.

February 1937. "During the flood, cows and chickens were moved to the highest ground possible. Near Cache, Illinois." Aftermath of the Ohio River Valley flood. Photo by Russell Lee for the Resettlement Administration. View full size.

Circa 1901. "Paterson, N.J., from Water Works Park." Lovely Paterson, Pearl of the Passaic. 8x10 inch glass negative, Detroit Publishing Co. View full size.

Feb. 9, 1940. "Middlesex County Girls Vocational School, Woodbridge, New Jersey. Household management porch, horizontal. Alexander Merchant & Son, architect." Large-format acetate negative by Samuel H. Gottscho. View full size.

An unlabeled photo of cars parked next to train tracks from the FSA archive taken around 1939. Who can pinpoint the location? View full size.