I live just north of Derby and have an interest in guns made locally there so see quite a few Rossons. I was lucky enough to be able to speak with an old timer who worked there and with another Derby Gunsmith. I did a lot of digging around on this Maker. I never could bottom the reason for the fall out but I suspect that it was to do with the old man's Will. The Derby Rosson finished in the 1950's and the Norwich Rosson sold out shortly afterwards to Charles Hellis then to Gallyons of Norwich. Lagopus.....
