In the same vein as vintage Playboy, here's a collection of covers of Lui magazine, from a site entitled 'Nostalgic'lui'.
http://membres.lycos.fr/britlogic/couvlui/index.htm
The cover archive spans 13 pages, so plenty to look at. There's much more skin on show, but nothing we haven't seen in a 1970's calendar, nothing worse than you'd see on French Photo today.
In fact, you can track its visual evolution from artistically showcasing flesh through to a more vulgar style (cover No 115 attached, from the earlier days).