Lidl of Brno in Moravia F helicon 4RV

Pre-1919 Lidl of Brno in Moravia F helicon 4RV

1. Valve section back view

2. Front view

3. Bell ferrule

4. Valve section view

5. Back view

6. Kranz

7. Valve section back view #2

8. Neck mount

9. Maker';s shield