eeb, It is entirely possible that your Scott is a Premier grade because I had a 12 bore Premier with the exact same water table markings, except mine was Purdey patent use no. 4625 and S/N was 5160. It had all the Premier patented features as yours does, with No engraving. My understanding is that oftentimes a pigeon shooter would order a best grade gun with no engraving , but the best grade wood, action, and barrels. Mine also had Stanton marked best rebounding locks. Your gun is the second one I've seen sans engraving, but I believe it is right. That gun had cutting edge features considering it was built in the mid 1870's and Scott's quality was second to none. Enjoy it, Sandlapper