This is a beautiful example of an Otto Link Tone Edge soprano mouthpiece. It has its original 7 facing measuring .062″ or so. The 7 stamp is the larger font, and the USA stamp is small font like a FL Tone Edge. The Otto Link logo and chains are not the modern version, and neither is the shank design, and the machine marks on the table are a fine vertical denim pattern. The chamber is large and round. It plays beautifully with a warm, rich tone. I guess this would be an Early Babbitt at least early 80’s. I have to admit, I’m not an expert on the differences between soprano stamping in the 70’s to early 80’s on these. But it looks better than smaller tip ones I see selling online for $800, so hopefully this is a good deal for somebody. It also includes the Vandoren Optimum ligature in the photos.