1980 Fritz Petzold of Markneukirchen compensating double horn 4RV

1. Body view

2. Disassembled

3. Valve section view

4. Valve section view #2

5. Valve section back view

6. Back view

7. Handgrip area

8. Front view

9. Bell flare

10. Bell engraving

11. Full view

12. Body back view