topic

name

• Pennsylvania Railroad1
• Purviance, W. T. (William T.)1

collection

• Robert N. Dennis collection of stereoscopic views1

place

• Conemaugh River (Pa.)1
• Pennsylvania1

genre

• Photographs1
• Stereographs1

publisher

• W. T. Purviance1

division

• Wallach Division: Photography Collection1

type

• still image1