Joe Santoro by George Platt Lynes, circa 1940s

 

This image courtesy of William O'Connor / Wessel + O'Connor Fine Art.

These photographs appear online with various attributed dates as far apart as 1938 and 1959, but it's safe to assume they were all taken at the same time; according to the records of the Kinsey Institute, 1949. I haven't been able to gather any information on the model, but he may have become a professional photographer himself.

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A rather less discrete variation on the first image exists, but I was unable to find a larger image of it online.