Hi Everyone! I am new to the game and came across this Starr Carbine. Its a first model percussion with 2 different numbers stamped on the side of sliding breach block. 3400 on one side and 3419 on the other. The part was cleaned by someone in the past but the areas that cant he reached have the same look as the surrounding areas. Definitely an old repair if that is so. I have not seen anything like this online as of yet. Maybe someone here can shed some light on this. Its stamped with a D near the trigger guard. I intend to make some ammunition for it as it looks like a good challenge. Thank you in advance for the help!