Trombone Mouthpiece GREG BLACK Greg Black Alessi model 3.5 Gold-plated finish Cup Inner Diameter: 26.4mm Cup Depth: Medium Deep Bore Size: 7.13mm This is the original model of the current New York model, the Alessi model used by the New York Philharmonic. As a size comparison, I think it's about the same as a Greg Black Alessi model (current artist model) 3E. There are small scratches overall due to use, mainly on the shank. I think it's relatively clean, but there is one dent (see photo 5, sorry it's hard to see). It does not affect playing. Please understand this is a used item. It will be shipped in the original case. This model is rarely seen these days, and I feel like the 3.5 size in particular is not often available. To be honest, I'm also hesitant to sell it, so I've set the price high (I'll gladly sell it if someone wants it at this price). Please feel free to contact me for a consultation.