A trigger spring for Besson Sovereign cornets to fit the newer models where the triangular part of the spring points upwards.
Besson / Boosey & Hawkes Sovereign Cornet 3rd Valve Trigger Spring - Older Model
Besson Waterkey Spring - Sovereign Cornet 3rd Slide
Besson Genuine Besson Sovereign Cornet Waterkey Spring
GENUINE BESSON SOVEREIGN/PRESTIGE 3RD VALVE TRIGGER LEVER SPRING (NEW MODELS)
Besson Sovereign Cornet Service Kit - Old Model Top Outer Sprung
Besson Sovereign Cornet Service Kit - Modern Top Inner Sprung Models
