Years ago, a friend gave me a pistol he built and he always said it had a Bob Roller flintlock on it.
The lock doesn't have any markings on it. It was given to me back in 1978, and the man had had it at least six years prior to that.
Fast forward to the present... Imagine my surprise when I found Bob Roller as a contributor to this site.
The builder's name was Dr. L. H. (Howard) White, on Washington Street in Valparaiso, Indiana.
The lock has a separate pan, and a fly in an unusual (to me) tumbler.
Bob, is this one of yours? Doc was a frequent visitor to Friendship, perhaps he bought it from you there?