Hi! I have a 4 valve compensating euphonium that I would like to sell, if you're interested.
It's an Amadeus Protege, a brand I have never heard of but it works very well and is in an okay condition considering its age. I'm not sure how old it is exactly but I bought it secondhand around 4 to 5 years ago and it was a great instrument for school. If you don't mind it being thirdhand then PM me if you want more details and we can negotiate the price.
Thanks!