topic

• Railroad cuts22
• Railroad bridges18
• Railroad tracks14
• Railroad tunnels14
• Railroad stations7
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name

• Purviance, W. T. (William T.)125
• James S. Earle & Sons22
• Lincoln, Abraham, 1809-18651

collection

• Robert N. Dennis collection of stereoscopic views125

place

• Pennsylvania125
• Horseshoe Curve National Historic Landmark (Pa.)19
• Susquehanna River10
• Packsaddle (Pa.)7
• Altoona (Pa.)6
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genre

• Photographs125
• Stereographs125

publisher

division

• Wallach Division: Photography Collection125

type

• still image125