Image: Undark (Radium Girls) advertisement, 1921, retouched
Description: 1921 magazine advertisement for Undark, a product of the Radium Luminous Material Corporation which was involved in the Radium Girls scandal. Retouched version
Title: Undark (Radium Girls) advertisement, 1921, retouched
Credit: Google Books - (1921-08). "The Story of a Great Engineer". The American Magazine 92: 85. Springfield, Ohio: The Phillips Publishing Co..
Author: Unknown
Permission: This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923. Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country. PD-1923 Public domain in the United States //commons.wikimedia.org/wiki/File:Undark_(Radium_Girls)_advertisement,_1921,_retouched.png
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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