I remember PLAYGIRL having had their infamous non-nude year some time toward the end of the 1980s (> the Reagan era, during which PLAYGIRL has cum under fire several times as the Reagan administration wanted to prevent the rag from showing exposed manmeat, and it worked for about 9 months or so, but with disastrous results!).
Anyway, Mike Stones' aka Don Arden's pictorial must have cum right before (or after? - I can't remember ...) the ban on exposed manmeat was lifted, though his PLAYGIRL spread is relatively tame compared to what he got up to for COLT shortly after.
Mike Stone, from PLAYGIRL, February 1988: