It says CONN on it. The mouthpiece says BACH 10-1/2C. My wife found it for $40. I had thought maybe I needed a different mouthpiece because I had such a hard time reaching the higher C, but I guess I just need to practice more. I'm getting the high C now, but can't go any higher. I wish I could afford an instructor. Actually, if I could, I would spend the money to give my kids lessons instead of myself. But I will search for that book. Thanks for the info. So far, all I've had was what you can find free on the internet.