You are correct! My excuse for not noticing that marking is that I am woefully poor in the vision department. Looked like part of the engraving pattern until I removed my glasses and stuck my nose on the extension! Your reasoning sounds entirely logical to me. Under levers, side levers, top levers, all interesting but I really like the Purdey thumb lever openers!! So elegant in operation and execution. I can see why the top levers won out when combined with ejectors during the Edwardian era of large driven game shoots. They are probably the quickest to reload when in a tight corner. Edwardian, I can see where the light 10's would be perfect for a pheasant drive. For a full day in the field, the 6.5 pound 12 bore game guns are really ideal and even they get a bit heavy by the end of the day!
