topic

• Railroad tracks25
• Railroad shops & yards21
• Picnic grounds11
• Scenic overlooks9
• Fences8
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name

• Bonine, R. A177

collection

• Robert N. Dennis collection of stereoscopic views177

place

• Allegheny Mountains177
• Pennsylvania177
• Altoona (Pa.)30
• Horseshoe Curve National Historic Landmark (Pa.)14
• Lloydsville (Pa.)11
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genre

• Photographs177
• Stereographs177

publisher

division

• Wallach Division: Photography Collection177

type

• still image177