This vintage New York City subway map from 1954 shows the three separate private transit services—IND, IRT, and BMT—that would eventually combine to form the single MTA subway system we have today. The map was produced by the Union Dime Savings Bank, a financial powerhouse in the City from 1859 through the 1970s.
Check out the specimen page on the Library of Congress Digital Archives for more info on the map.
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