Thank you for viewing. I purchased this on Mercari around last summer and used it for about two months. However, I found stability with a different mouthpiece, so I stored this one in a dark place. I've decided to sell it since I won't be using it anymore. There are some minor scratches, but as far as I can see, there are no major distortions. The rim and cup are gold-plated. Tilz D3 European Shank Cup: 17.0 Bore: 3.7 Cup Depth: MF (slightly shallow) Rim: MB