Join Date: Aug 2014
Congratulations to that very beautiful blunderbuss.
I think, the date "1821" got nothing to do with the year of production. Maybe it is a memory for something important in the life of the owner and so on.
The golden filet on the upper jaw could also be a soldering seam from an old repairing job. The upper jaw is under high stress if the gun is fired.
Very nice blunderbuss and I'm happy for you that you finally got it.