Adam, Your gun was made in Birmingham!At the time that the gun was made it was a practice in Birmingham to stamp the proof marks[pre1904 black powder] on the barrels, rather than on the barrel flats when a gun was destined to be export.
Golcher was partnered with Clabrough ,they traded under the name ,Clabrough, Golcher & Co. Partnership established in 1882. Books by Lawrence P Shelton detail this relationship.
Clabrough had a significant firearms manufacturing plant in Birmingham, and major warehouse/store in San Francisco, unfortunately destroyed in the 1906 earth quake.
Your gun is pictured as a Golcher gun in the 1890 Clabrough @ Golcher catalogue, the price was $35 .by comparison their best side lock ejector was priced gun at $200
Last edited by Roy Hebbes; 12/19/16 10:39 PM.