topic

• Railroad tracks7
• Rivers6
• Railroad bridges3
• Bridge construction2
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name

• Sperr, Percy Loomis, 1890-196411
• New York Central Railroad Company9
• Henry Hudson Parkway Authority5
• Central Railroad of New Jersey1
• New York Central and Hudson River Railroad Company1

collection

place

• New York (N.Y.)11
• New York (State)11
• New York10
• Harlem River (N.Y.)6
• Henry Hudson Bridge (New York, N.Y.)6
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genre

• Photographs11

division

• Milstein Division11

type

• still image11