Wiener valve trombone in F 4RV

Erste Wiener Produktiv-Genossenschaft der Musik-Instrumentenmacher valve trombone in F 4RV

1. Bell

2. Lower bell bow

3. Bell loop

4. 3rd & 4th slides

5. Detail

6. Stay

7. Engraved Kranz

8. Valves

9. Bottom caps

10. 1st loop

11. Clocksprings

12. Crank & screws

13. Engraved Kranz c

14. Stays

15. Bell bows

16. Body stay

17. Kranz

18. Decorated Kranz

19. Bottom caps b

20. Bell lock

21. Bell bows 2

22. Full

23. Engraved Kranz b

24. Water key

25. Tuning slide

26. Top bows