Lebayle (Grenadilla?) Wood Soprano Saxophone mouthpiece. Looks like the LR chamber to me, but with a little squeeze entering the chamber. This beautifully crafted piece gives you warmth and a distinctive soprano sound that is totally different from the usual pieces that you hear on soprano. With the larger chamber, it is also compatible with vintage sopranos. It has a brass band on the shank for stability. Good piece for the pro soprano player to try out.