Here is a not often seen 1 1-2C (No dot ) Mt. Vernon trumpet mouthpiece, if you’re looking at this, then you know what it is. The no dot means that is nothing more than a Mount Vernon Trumpet Mouthpiece. Very seldom do I see the no dots in larger sizes usually, I see them bouncing around 7C. Maybe a 3C Sometimes a 6C but not very often 1.5 C I’ve held onto this Mouthpiece only because it interests me so much. It’s a bona fide 17.00mm and you can see the Mount Vernon Rim shape !! That is undeniable has a 28 throat with a Bach #10 back bore . Plays just how you would expect a 1.5 Mt. Vernon to play sound and feel . Free shipping international shipping is available. All offers are welcome thanks.