topic

• Hoisting machinery15
• Bridges3
• Excavation3
• Road construction3
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name

• Sperr, Percy Loomis, 1890-196412
• New York World's Fair (1939-1940 : New York, N.Y.)1

collection

• Photographic views of New York City, 1870's-1970's, from the collections of the New York Public Library15

place

• New York (N.Y.)15
• Manhattan (New York, N.Y.)6
• New York6
• New York (State)6
• Hudson River (N.Y. and N.J.)2
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genre

division

• Milstein Division15

type

• still image15