Hi Stu
Yes, it has a Beaumont Adams silhouette, but with a few alterations, both in body as also in assembly, with some "luxury" optionals.
And it is obviously a 54 bore caliber and not 58 as i first mentioned.
The only mark in the mould is the caliber digits 54. The powder flask is marked Bartram.
Well, not propperly as retailer in the generical sense. It took me five years to find out that Mr Edward Gem was one of a number of Birmingham Gunmakers and dealers who became a shareholder in the founding on the Birmingham small arms Co Ltd.
He has also been a factor for a number of Birmingham makers; i guess in a sense that, at a certain stage there were several "workshops" in Birmingham, making loose weapons parts, that were later assembled by those that sold the guns to the market ... retailers, governments and other.
I ignore if ever there was a Trade Label; some ignorant, thinking he was doing the right thing, has painted the whole case interior with some thick plastic paint, thus covering all traces of a possible label. One of these things you will never know the reason for.
As introduced above, i don't think this was the case; more probably a "white line" specimen or, which also took place in those days, a customized and or personalized specimen, ordered with instructions not to bring any maker's codes.
Yes, both Birmingham and London proof marks on both cylinder and barrel
Well, they are not
all junk
Fernando