File talk:Clyde W. Tombaugh.jpeg
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A 1965 publication
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The photograph was published by 1965 at the latest. See The Search for Planet X (1965) by Tony Simon. You can look through a copy for sale here [1]. (You have to click through the images to get to the relevant image.) Choor monster (talk) 20:53, 10 August 2015 (UTC)
The photograph was published in 1930. See Alden P. Amgagnac, "How They Trailed a New Planet", Popular Science Monthly, (June 1930) pp. 27–28,123–125. It's on page 28. Choor monster (talk) 22:08, 10 August 2015 (UTC)
