AMERICAN GUN COMPANY
AMERICAN GUN COMPANY is a trade mark used in particular on shotguns to unrifled bore sold by H.&D. Folsom Arms Company (House founded in 1860). In 1916, the seat was in New York, 314 Broadway. (See John Walter).
Thus the manufacturer of this rifle can be in USA, Great Britain, and even - which knows - come from Belgium…
Michel (Belgium)
