Pre-1919 Johann Michl F helicon 4RV

Johann Michl & Sohn Musik - Instrumenten - Fabrik of Graslitz - Böhmen

1. 4th valve wrap

2. Body view

3. Large ferrule

4. Clockspring adjustment wheels

5. Neck and leadpipe back view

6. Paddle alignment

7. Bell view #2

8. Cranks and stop arms

9. Tuning slide view #2

10. Neck and leadpipe

11. Tuning slide

12. Tuning slide view #3

13. Valve section back view

14. Bow and Kranz

15. Valve section view

16. Bell flare view #2

17. Bow guard

18. Bow view

19. Clocksprings

20. Bell view

21. Back view

22. Side view

23. Maker';s shield

24. Bell flare

25. Neck