This week's selection from the Vintage Vault comes from the early Seventies. British photographer Mike Arlen started off shooting clothed bodybuilders when a German editor requested something more explicit. He convinced Michael Walsh to strip down on the farm for these pictures. They appeared in the July 1976 issue of In Touch & the July 1973 issues of Swedish sex mag Revolt. All of these images are courtesy of Retromen Plus which you can join via their Yahoo Group & Google Group (which includes archived messages).