I'm posting this for a friend and colleague.
Great playing Bach 50 yellow brass bass trombone bell with Greenhoe connectors, 9.5"
Purchased new direct from Greenhoe in 2007. This was my daily player for 10 years. I took it on tour to 9 different countries, used it to get into and through a master's program at NEC and won my first full-time orchestra job with it.