Hello,

I was wondering if anyone would be able to confirm whether a Besson France "Systeme Prototype" 4-valve euphonium that I've just acquired is in fact a euphonium or baritone horn or indeed something else?!

It is stamped:

Systeme Prototype
I.BESSON
BREVETÉ
SGDG
PARIS
66 HAUTES RÉCOMPENSES
6 GRANDS PRIX
HORS CONCOURS
MEMBRE DU JURY
MADE IN FRANCE
97943

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328739F6-C175-4E26-A076-66867325ED8F.jpeg

Thanks in advance,

--
Chris