
Mark Twain in Tesla’s lab, 1894

A 10 x 15-foot wooden shed where the “Harley-Davidson Motor Company” started out in 1903

Testing football helmets in 1912

Helmets again: A Pyramid of captured German ones in front of the NYC Grand Central Terminal, 1918

A bar in New York City, the night before prohibition began,1920

Mount Rushmore Before Carving, 1920s

Traffic jam in New York, 1923
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