Lad. Prokop of Chrudim in Czechia valve trombone 3RV

1. Valve section view

2. Handgrip area

3. Clocksprings view #3

4. Mouthpiece view #2

5. Large bow view

6. Clocksprings

7. Tuning slide

8. Full view

9. Clocksprings view #2

10. Engraved Kranz

11. Bell flare

12. Mouthpiece view

13. Valve section back view