topic

• Railroads5

name

• Sack, Alexander N. (Alexander Nahum), 1890-19555

collection

• Materials relating to the development of railroads of the Russian Empire5

place

• Poland5
• Russia5
• United States5

genre

• Documents5
• Manuscripts5
• Maps3
• Charts2

publisher

division

• General Research Division5

type

• text5
• cartographic2
• still image1