I have a Bach 50BG3 Bass Trombone for sale! It is around 5 years old and I used this as my main instrument until quite recently. It is open wrap, has independent rotary valves and has a gold brass bell (which looks red) which isn't the standard bell. It has original case in good condition. Is in good condition for age with a few mute dents through normal band use. I am asking £1000. PM me for further details. I have some photos if anyone is interested.