That gun was imported into the States by Hy Hunter (marked on the barrel above the Hollywood California Mark)which sold muzzleloaders in the late 60s and 70s during the muzzleloading craze.These guns were made in Italy by a number of firms like zoli and armi San Marco and were branded by the numerous importers like Navy Arms, Dixie gun works , Euroarms etc.it looks to be in nice condtion probably worth about 500 or 600.The current ones made by Pedersoli would be of better quality.