Meinl Weston BBb tuba 4RV bell front

1. Bell flare

2. Body in its case

3. Main tuning slide

4. Bottom caps

5. Front

6. Bell knee side

7. Valves

8. Bell knee

9. Bell in its case

10. Bell

11. Rear

12. Top slides

13. Top bow

14. Engraving

15. Bottom bow