Conn 6H Elkhart 1962 Make with Carbon Fiber Outer Slide

Conn 6H Trombone SN 964200 made around 1962, Elkhart era.  Has custom fitted carbon fiber outer slide, most likely done by Butler. Original Inner tubes, bracing and end crook. This was a pro players horn who was also the original purchaser in the early 1960's.  Classic 6H yellow brass bell with 8" flare, unsoldered rim, all original lacquer, no dents or dings, super straight bell.  Hand slide is .500 bore.  Has had full shop service here including chemical bath and once over.  Includes excellent condition Conn case from the same period.