There was a William Moore who was a London Gunmaker of some repute. He used the title William Moore & Co, 43, Old Bond Street, from 1854 to 1872. At other times the title included his associate Wlliam Grey along side his own name. I would expect the full name of William Moore and London proof marks. It could be someone trading on his name. I did once have a gun marked Wm. Moore that was of poor quality and trading on his good name which I de-activated as a wall piece. I should just go with the quality of the gun and wheter you like it or not. If you can post a photograph it may help in determining its origins. Lagopus.....
