Alfred H. Joy's 90th birthday party at the Hale Observatories Library, Pasadena. Joy is seen standing out of a chair to receive what appears to be a framed piece of art from an unidentified man. At the far left is a table holding Joy's birthday cake. Behind the men are bookcases, books, two windows with blinds drawn and a chest of drawers. Both men are wearing suits. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
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