Was a little stuck and about took off a finger when it finally let go but its off now. serial number, four rabbits, Charlin Automatique St. Etienne. And as you predicted several proofs on the bottom of barrels pictures attached pour poudre pyroxlee. Dave K that is virtually the same gun thanks for the link that one is not as engraved but that is it. Was not familiar with the sliding breech. Click on the pictures and then there should be a magnifying glass on top right and then you can move the picture around on the picture itself to get a good view.
http://picasaweb.google.com/jshayes99/Desktop?authkey=Gv1sRgCPPVl_ner6r1YQ&feat=directlink
