Trying to establish Original Quality grade based on maker's name will get you nowhere. British gunmakers supplied a range of Original Quality grade guns based on what they could sell to their various customer bases. London based firms tended to a higher % of higher grade guns as their customer bases tended to be more affluent and socially involved. Provencial firms tended to a higher % of lower grade guns as their customers mere more rural,less affluient, and less socially involved. Some firms did a good bit of export business and their guns show the bias of whatever market they were biggest in (USA, Canada, Australia, Africa, India, etc.). The makers name is recognized in the market via a Brand Value factor.