File:1939 IND Second System.jpg
1939 NYC Subway expansion plans (IND Second System), reproduced in Twelve Historical New York City Street and Transit Maps Volume II from 1847-1939. No copyright notice, which was required in the U.S. until 1989, so it's public domain. Also not listed in [1] archive copy at the Wayback Machine.
Licensing
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. | |
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |