Thanks for the info. I figured it was a no name knock off. I normally play euphonium and like the Denis Wick's I have for that, so I'll probably purchase a Denis Wick 3L for the tuba.

I just bought a new John Packer JP377 Eb tuba. It came with a mouthpiece. There are no markings on this mouthpiece at all. Can anyone help in deciphering what this mouthpiece is? Brand, size, etc. I tried contacting John Packer via their website, but they have not responded. I've attached pictures ...