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Photograph of Albert Einstein, published in the USA in 1921.
Source: "Professor Einstein's Visit to the United States," The Scientific Monthly 12:5 (1921), 482-485, on p. 483.
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This image is in the public domain in the United States. In most cases, this means that its first publication was in the United States prior to January 1, 1923 or that its copyright expired in the United States. |
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