RS Berkeley USA Legend Series This is a signature mouthpiece for Chris Potter. Purchased from Soundealz on eBay (see image 9). Scanned a vintage Otto Link (most likely a Florida Link) that Chris Potter used, and technicians finished it by hand. According to the brand, Chris himself used it on stage and reportedly rated it higher than the original Otto Link. ※ Search for "Neff music Chris potter" for a detailed review. Chris's comment (from Neff music, AI translation): "I was so happy the first time I played this mouthpiece, and I was surprised that it was a little better than the vintage one I based it on, in terms of the sound I'm trying to get. Good and clear response in all registers. And most importantly, it gives me the tonal flexibility that I could only find in my old mouthpieces. Please enjoy playing it as much as I do." The tip opening is equivalent to Otto Link 7⭐︎. I couldn't produce a sound like Chris Potter's with my skill, but the tone certainly feels like Chris's. Above all, it's easy to play, and subtones and flageolets come out comfortably, making practice enjoyable. It's not often seen in Japan, and I think it's quite rare. I'd rather someone play it than keep it in storage, so I'm putting it up for sale. Since it's unplated, there is discoloration as shown in the images, and please understand that it will continue to change over time. As shown in the images, there are mouthpiece patch marks, and the bite mark of the original is also reproduced lol. Model: LPOTTN105 Tip Opening: .105" Material: Natural Bronze, unplated Notes: ・The item is only the mouthpiece and case shown in the images. Please note that ligature and cap are not included. ・The condition may have some minor oversights, so please consider it as used. ・Returns and exchanges are not accepted. ・Please provide a receipt evaluation within 48 hours of receiving the item. ・For price negotiations, please comment with your desired price instead of using the system's price reduction request. If you have any other questions, feel free to comment!