Hello all, broke college jazz trumpet student here wondering if this mouthpiece is real. I’ve never been much of a gear guy, and if this is real I feel like it’s worth too pretty of a penny for me not to sell. I know they normally say Mt Vernon NY but is this authentic as well? The text reads “Vincent Bach Corp Mt Vernon 3c”. The 3c symbol looks to have the 3 hand-stamped, and the rest of the text engraved.