Note that the pair of Heronshaw guns has the WR C type bolting. This is what was normally used on the WR detachable lock model & better grade non detachable lock boxlock guns. The lower grade boxlocks used the standard A&D type bolting. I'm not saying that the C type bolting warrants the asking price but the Herronshaw guns are of a higher grade than the basic A & D gun. Personally, I'm not in love with that version of Celtic style engraving.