topic

• Railroads3

name

• Sack, Alexander N. (Alexander Nahum), 1890-19553

collection

• Materials relating to the development of railroads of the Russian Empire3

place

• Canada3
• Poland3
• Russia3
• United States3

genre

• Documents3
• Manuscripts3
• Pamphlets3
• Charts2

publisher

division

• General Research Division3

type

• text3
• cartographic2
• still image1