1980 1980 Conn 11J BBb tuba 3FP bell-up

1. From Conn 1976 catalogue

2. Body back view

3. Bottom bow view

4. Leadpipe view

5. Bell engraving

6. Top bow view

7. Valve buttons view

8. Bell view

9. Pistons

10. Details

11. Front view

12. Bell flare