Jos. Fotter of Ml. Boleslav single F horn 3RV arranged in an unusual triangle:

1. Body back view

2. Valve section view

3. Body view

4. Engraved Kranz

5. Handgrip area

6. Engraved Kranz view #2

7. Bell flare

8. Disassembled

9. Front view

10. Valve section back view