I've been offered a Selmer Claude Gordon for $400.00. No dings, no dents, but some noticeable finish erosion (however, I've been assured that the horn has no corroded metal). Valves are in working order and the horn is playable. Sounds like a good deal to me, but I wanted other's thoughts. What do Selmer Claude Gordon's go for these days, and, is it bad to play on a horn that maybe 25+ years old? Should I go for it? Serial #001613 Can someone give me some information on this model (age, tone, quality, etc).