I recently bought a burnside that I'm told has a tinned finish. The rifle belonged to Thomas Daly jr. 1st leiutenant Co. F 132nd regiment N.Y. and would have seen service in North Carolina. There is a distinct pewter color that is worn off on the right side and under the barrel band it is shiny silver. I am told this was a special finish for costal climates. What do you all think? I will post pictures as soon as I learn how to transfer from phone to computer.