I bought it some 30 years ago planning to learn to play, but I didn't get around doing that. I have since forgotten about it until a couple of years back I returned to San Francisco and found it in the basement of the house I had sold. Don't think I can learn at my late age. Its serial number is 858xxx. The horn is in its original condition with the exception of discoloration at a few spots. It has the original hard case with its 2 keys and the care booklet inside. For some reason, I don't seem to fine the mouthpiece, although the neck is there. How much can I get if I sell it?