As part of my ongoing interest in examining Mercier history, here are some various badge images I've managed to track down. If anyone has additions or corrections, please jump in!
1930's (I have a lot of experience with Art Deco and design from the period, and I think this is pretty fantastic, if a bit faded):
1940's/50's?
1950's?
1960's
Foil badge (late 60's? early 70's?)