Alexander Mainz compensating double tuba F & BBb 4RV

Nov 1, 2010
1. Engraving
2. Rear
3. Top bow b
4. Full
5. Stop arms
6. 3rd compensating slide
7. 3rd compensating loop rear view
8. 3rd main loop slide
9. Bottom bow
10. Clocksprings
11. Bottom bow b
12. Engraving b
13. Bell rim
14. Tuning slide
15. Bell rim b
16. Top bow
17. Leadpipe
18. Bell
19. Spatulas