Share 'Coffee Cards??'

I wish I spoke French. I also wish I knew more about "Coffee Cards". Perhaps our Network creator, Mike Ferguson, can give us a little background on just what Coffee Cards are, where they were popular, collect-ability etc. This site - http://bibigreycat.blogspot.com/ - seems to have a vast collection of these cards.. but very little information about them - and what there is, is all in French.…