These are a unique design, they've been copied, and have influenced many other designs. This example is in excellent condition and is fully functional. These are very rare and generally the alto versions are the most looked for. Please ask any questions as soon as possible to give me an opportunity to respond. The item "Winslow Alto Sax Ligature to fit Hard Rubber Mouthpieces, Meyer, Selmer, Nice" is in sale since Saturday, July 13, 2019.This item is in the category "Musical Instruments & Gear\Wind & Woodwind\Parts & Accessories\Ligatures & Caps". The seller is "danlam" and is located in Williamsport, Pennsylvania. This item can be shipped worldwide.