This is a very nice, earlier vintage “short shank” Selmer Soloist tenor sax mouthpiece. This model features the scroll pattern on the shank, and the horseshoe chamber. It is in superb original condition, with the slightly larger D facing stamped on the table. The only wear I can see anywhere is a couple very light scratches right on top of its body. The beak and original facing all look new. You see a lot of these old pieces in the traditional C* facing, but the larger tip openings are always a nice find.
The tip opening of this mouhtpiece .080"