Primary Picture
Albert Einstein in 1947 [Photograph by Oren Jack Turner, Princeton, N.J.; source: Library of Congress's Prints and Photographs division under the digital ID cph.3b46036]
Lisätietoja
Jäsenen xaagmabag lataama kuva (Oct 8, 2014).
Tekijänoikeus: From Wikimedia Commons: This work is in the public domain because it was published in the United States between 1923 and 1963 and although there may or may not have been a copyright notice, the copyright was not renewed.