topic

• Rivers24
• Railroad tracks14
• Bridges11
• Railroad bridges10
• Boats2
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name

• Sperr, Percy Loomis, 1890-196423
• Henry Hudson Parkway Authority5
• Columbia University1
• Fairchild Aerial Surveys, inc1
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collection

• Photographic views of New York City, 1870's-1970's, from the collections of the New York Public Library24

place

• New York (N.Y.)24
• New York (State)24
• New York11
• Henry Hudson Bridge (New York, N.Y.)6
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genre

division

• Milstein Division24

type

• still image24