Johann Michl & Sohn of Graslitz Eb tuba 4RV with a strong historic pointer (Sudetengau)

1. Clock springs

2. Front view

3. Kranz

4. Age shows view #1

5. Age shows view #2

6. Disassembled - but not much

7. Long tuning slide

8. Body front view

9. Bell engraving

10. Body back view