Edwin Wilson was at 13, Rampant Horse Street in Norwich until 1905 before selling to Rosson. Charles Rosson was a Gunmaker at Derby and his elder son Charles Stanley Rosson ran the Norwich shop in a way to expand the business. The younger son Percy James Rosson ran the Derby shop until the 1950's after the death of their father. Living near Derby I have a special interest in Rossons and collect their guns. Lagopus…..