Image Source: Interborough Subway Car. 1901-1905. NYPL Digital Collections Image ID 2040753
Image Source: Map showing the lines of the Interborough Rapid Transit Co. 1904. NYPL Digital Collections Image ID 1113707
Online Research Catalog
When using the Online Research Catalog:
Please note that you can have narrow your search to more specific results by combining the above search terms with any of the terms listed in the "Terms to Search in the Online Research Catalog" portion of this guide's Using Our Catalogs page.
Dictionary Catalog
To find supplementary books and documents related to the IRT, please conduct the searches listed on this page's "Catalog Tips" with "Cartographic" NOT checkmarked in either our Online Research Catalog or Digital Collections Portal. See below for a list of recommended materials: