1917. "Mrs. Newton D. Baker." Elizabeth Leopold Baker, wife of the Secretary of War, strikes a vixenish pose. Harris & Ewing glass negative. View full size.

"Philadelphia Post Office." Big-city hustle and bustle circa 1900. Plus: What the well-dressed horse is wearing this season. Detroit Publishing. View full size.

"Semmes Motor Co. truck, 1926." A Dodge truck outside the Grand Central Palace pool hall in Washington, Pennsylvania Avenue and Seventh Street N.W. National Photo Company Collection glass negative. View full size.

"U.S. Army camp kitchen." Somewhere in the general vicinity of Washington, D.C., circa 1918. National Photo Company glass negative. View full size.

October 1905. The New Montauk theater in Brooklyn at Livingston Street and Hanover Place. Now playing: Sam Bernard as Schmaltz in the vaudeville comedy "The Rollicking Girl." Detroit Publishing Co. glass negative. View full size.

June 22, 1918, in or near New York City. "Miss May Schloss at canteen." 5x7 glass negative, George Grantham Bain Collection. View full size.

March 18, 1919. "Caruso and Muzio." Famed Italian tenor Enrico Caruso with the soprano Claudia Muzio in New York during his 15th year with the Metropolitan Opera and two years before his death. G.G. Bain Collection. View full size.