topic

• Railroad tracks2
• Railroad cuts1
• Railroad mail service1

name

• Bonine, R. A15
• Pennsylvania Railroad15

collection

• Robert N. Dennis collection of stereoscopic views15

place

• Allegheny Mountains15
• Pennsylvania15
• Horseshoe Curve National Historic Landmark (Pa.)9
• Kittanning Point (Pa.)2

genre

• Photographs15
• Stereographs15

publisher

division

• Wallach Division: Photography Collection15

type

• still image15