Vintage Conn Visible Embouchure Screw Cup Trombone Mouthpiece - Brass and Bakelite

This is in very good condition, no issues, only some very mild surface blemishes. The red Bakelite cup appears to have an inner crack or imperfection within the thick Bakelite wall, but it is not a structural issue at all.

Some cleaning and polishing needed.

Please write with any questions.