All of the Clabrough guns that I am aware of were produced in Birmingham. Even after the Golcher's took over, it is not clear how much was done in the states if anything. Dad was the gunsmith, William, not the sons or grandsons.
The only images I have seen of William Golcher guns have Birmingham proofs. At least 1 of his brother's, Thomas L Golcher, guns has them, while another does not.
Joe, I have seen Clabrough guns wind up back in London at Sotherby's.
For a good article and some pictures of a T.L Golcher gun, see this issue of SSM. SDH did a nice write up on it.
Pete
