Howdy, was just wondering about my CVA Hawken I bought as a kit back in the early 80's, and wondering if any one here could help? I bought it as a kit from a friend who had a black powder gun shop (The patch and ball)here in San Diego years ago, it is a Hawken Mountain rifle, on the barrel is CVA inc. cal. .54 black powder only, ser. no. 0000137. It has been an ongoing project, I have added a patch box, some inlays, and an L&R lock, this rifle is a tack driver and I'm very happy with it. Any guesses would be appreciated