Toby Barclay, UK dealer, bought a 10 bore SLE Claybrough at the Southern SxS. He took it back to the UK for a makeover: browning, bore hone, stock bending, refinish and trip to the proof house. 32" damascus barrels around 10-11 lbs, lots of US drop 3 1/2" at least. Definitely British made by proofs, but dimensioned for the US market at the time.
The butt plate said "The Quail Gun".
There must have been some BIG quail in California in the late 1800s.

Joe