1950 B&H Imperial BBb tuba 3TP comp

1950 Boosey & Hawkes Imperial BBb tuba 3TP compensating

1. Bell engraving

2. Valve section back view

3. Tuning slide

4. Slide view

5. Valve section view

6. Leadpipe view

7. Front view

8. Case

9. Bell flare

10. A stay view

11. In the case