Listmember Michele Francesconi of Stockholm, Sweden, sent me this great link from a Japanese collector, which has pics of sample pages from several 70's issues of Miroir du Cyclisme. The quantity and quality of the color photos is excellent. Worth checking out:
http://www.asahi-net.or.jp/
I believe this is the magazine I was looking for - the hunt is on!
Ray Dobbins
Miami Florida