Laskey 80F gold-plated horn mouthpiece. There is no shank (US/EU) marking on the engraving. It doesn't fit my Paxman M23 (US shank) and wobbles, so it's probably a European shank. There are no dents or major scratches on the shank, but there are scratches from use and small scratches on the rim as it was purchased used. Inner rim diameter: 18.0mm Throat: 4.62mm Depth: M.Deep Although the throat diameter is large, I feel that I don't run out of breath easily, and I think it's a good mouthpiece.