topic

• Railroads51
• Trestles41
• Railroad tracks23
• Mountains18
• Passes (Landforms)8
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name

• Portland & Ogdensburg Railroad Company76
• Kilburn Brothers27
• G. H. Aldrich & Co21
• Pease, N. W. (Nathan W.), 1836-191810
• Kilburn, B. W. (Benjamin West), 1827-19096
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collection

• Robert N. Dennis collection of stereoscopic views76

place

• White Mountains (N.H. and Me.)76
• Crawford Notch (N.H.)75

genre

• Photographs76
• Stereographs76

division

• Wallach Division: Photography Collection76

type