This was taken in Los Angeles at a park in 1977 by Brad Elterman. It's actually a park near my house - which is why I researched the details of the picture so much! I asked Brad about the information and he said he was tipped off that Robert was playing soccer at a park in Encino just for fun, and he had to go over and snap some pictures. Robert was just running around in the speedo and he was apparently very angry when he noticed Brad took the pictures - he chased him away