topic

name

• Underwood & Underwood56

collection

• Robert N. Dennis collection of stereoscopic views56

place

• New York (State)56
• Niagara Falls (N.Y. and Ont.)56
• Niagara Falls (N.Y.)56

genre

• Photographs56
• Stereographs56

division

• Wallach Division: Photography Collection56

type

• still image56