Bob Prowse was Dave Prowse's brother, here he is:
http://six.flash-gear.com/npuz/puz.p...880&k=31801536
That's me with camera in the mirror.
and here is his gym:
http://four.flash-gear.com/npuz/puz....2330&k=4869978
One of the body builder posters on the wall had the testicle hanging out, but not of course one that I have a photo of. It was 1982.