topic

name

• Bonine, R. A2
• Pennsylvania Railroad2

collection

• Robert N. Dennis collection of stereoscopic views2

place

• Allegheny Mountains2
• Flat Top (Pa. : Summit)2
• Pennsylvania2

genre

• Photographs2
• Stereographs2

publisher

• R. A. Bonine2

division

• Wallach Division: Photography Collection2

type

• still image2