This 15" charger has a medium wide rim. The surface has a great patina. The bottom side has several marks. There is a London Touch Plate Mark with a crown over a rose. There is a makers Touch Plate Mark which reads I No WATTS in oblong punch: upon it a globe, mounted in a stand. There is a B SI and then four touch marks: 1) IW, 2) cannot make out, 3) Man carrying a torch, 4) lion. This charger is an excellent addition to a serious collection.