topic

• Railroad bridges1
• Trusses1

name

collection

• Robert N. Dennis collection of stereoscopic views1

place

• Genesee River (Pa. and N.Y.)1
• New York (State)1
• Portage (N.Y.)1

genre

• Photographs1
• Stereographs1

division

• Wallach Division: Photography Collection1

type

• still image1