There was a specialty firearms store on Montgomery Street in San Francisco called Clabrough and Golcher.
It was destroyed in the earthquake:
And I'm not sure of the date of incorporation, but there was a Golcher Brothers sporting goods company, perhaps formed from the wreckage of C&B.
Hmm, an image import link is no longer working. Here's the link to a business letter with a Golcher Bros.letterhead.
http://www.sfgenealogy.com/sf/histor...s/hpltb062.jpg
Rats! Not working now. Seems like there must be an access counter that blocks that page after too many hits. I hope others can see it, but I get a 403 error on my computers.
Sounds like you have a storied California gun!