There is a Murat family from Saint-Etienne who were famous lock makers/action makers ("Platiners" - see the Fr-English dictionary on this site) for a couple of centuries. Louis Murat was especially well known around the 1850's. This line (translated to English) might provide a clue:
http://translate.google.com/translate?client=tmpg&hl=en&langpair=fr|en&u=http%3A//sysinfomac.fr/index.php%3Foption%3Dcom_content%26view%3Darticle%26id%3D21%26Itemid%3D83
That was a fine gun...it's been sold...wonder who bought it. Ted? Did you pull the trigger.
No. Quite done buying. Need to sell some stuff.
Best,
Ted