Good afternoon gentlemen, I have a question for all of you restorers. I am in the process of restoring an antique Wade & Butcher Celebrated Rattler. When I received it, it had a fair amount of pitting which polished and buffed out for the most part quite nicely. The old scales were black horn, and the tip on one side had broken off at the pivot pin. I am making a new set of scales for it in desert ironwood and have seen beautiful examples here that were finished with a CA finish. My question is, what exactly is this CA finish, and where can I find it? Thanks for your help!