1936 Holton-Miraphone BBb with 3 Holton-style short stroke pistons

1. Holton-Miraphone BBb 4SSP

2. Odd view

3. Valve section back view

4. Piston - aligned entries

5. Bottom bow

6. Bottom bow view #2

7. Body back view

8. Full view #2

9. Bell view

10. Bow guard

11. Valve section

12. Scalloped pistonview #2

13. Scalloped pistonview #1

14. Side view

15. Bell flare

16. 4 BBb tuba short stroke