A shotgun (also known as a scattergun and peppergun,[1] or historically as a fowling piece) is a firearm that is usually designed to be fired from the shoulder, which uses the energy of a fixed shell to fire a number of small spherical pellets called shot, or a solid projectile called a slug.
They are most likely a manufacturers mark or perhaps a product serial number or sorts.
0.5625 G mm'
A trade mark, manufacturer's mark or factory mark.
Antique expert Mark D. Stacey has the sexual orientation of heterosexual. He is not married, but he does date the opposite sex.
Proof mark.
probably a makers mark
silver mark 865
There are many signs that an antique is genuine. For example, pottery will often have a mark which should be checked. Silver and gold antiques should also have a hall mark.
E-gunparts.com
Could be an inspector's mark, assembly mark, etc..
The mark for sterling silver is 925 which indicates 92.5% silver content.
The crown is the proof stamp from the Birmingham proof house. All guns made in or imported to the UK were submitted for proof testing in either Birmingham or London. The stamp will have letters underneath it................'BV' denotes the 'viewing' mark, stamped while the barrels were in the white, before finishing. 'MP' denotes the definitive proof mark. These were applied to guns proved from 1904 to 1950, after which the crown was stamped atop 'NP'