Ladislav Kasal v Litomysli F-Eb bass valve trombone 4RV - secondary gooseneck taking the pitch to Eb

1. Right side view

2. Bell section bow

3. Kranz

4. Full view

5. Valve section close-up

6. Valve section back view

7. Engraved Kranz

8. Secondary gooseneck - transposing from F to Eb

9. Valve section view