Español: Timbre postal estadunidense del ferrocarril transcontinental, emitido en 1944, con valor de 3 centavos. Nótese que la bandera y el humo van en direcciones opuestas.
Date
Source
Own scan
Author
U.S. Post Office (Hi-res scan of postage stamp by Gwillhickers)
Licensing
This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason:
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
The official position taken by the Wikimedia Foundation is that "faithful reproductions of two-dimensional public domain works of art are public domain". This photographic reproduction is therefore also considered to be in the public domain in the United States. In other jurisdictions, re-use of this content may be restricted; see Reuse of PD-Art photographs for details.
Captions
A stamp with a steam train in the background and with the US flag and workers