I have a very nice CONN Constellation, Model 36B21, for sale. I received it as a Christmas gift in 1976. It was only played from January through May of 1977 (My senior year of HS). Just this week decided to sell (Packing to move). Very good condition. All slides and valves move easily. Original Case. Middle valve slide has a slight dent. Asking $1100.00 or make me an offer. If interested please contact me with further questions and/or photo request. For quickest response use my E-Mail address, [email protected].