Rare Blunderbuss with folding bayonet

[Matchlock]

Hi Marcus,


Though this is not really old enough to be of greater interest to me , I can tell that the slightly convex shape of the buttstock denotes a time of production around the 1770's.
The pitting seems due to salty sea climate, which did not as much harm to the case-hardened surface of the lock as it did to the 'soft'-iron barrel.


Best,
Michael