1944 Philipp Reichel - Instr. Fabr. Markneukirchen i. S single F horn 3RV, a very early sample of spiral springs for valves

1. Valve section view

2. Engraved Kranz

3. Engraved Kranz 2nd view

4. Disassembled

5. Body view

6. Full view

7. Body back view