A new DVD on That Man: Peter Berlin comes out June 13th. I have a vivid memory of this 70's model in skin-tight white jeans showing a box for days!
http://www.thatmanpeterberlin.com/ above the jeans he sometimes opened the fly see more at: http://www.queer-arts.org/berlin/index.html
There was a show at a gallery here in NYC that was a retrospective of his career. Early Peter Berlin show this uber-sexual man in skintight clothes showing off a major penis/bulge. He has a Dutchboy sort of haircut that is well past dated. He made an appearance here and well the man has not aged well facially though the body is still tight. I believe that he currently resides in SanFran. His website has many photos and art work from his early years.