This is an interesting horn! It's in pretty good shape overall, and does not appear to have anything that would need repair. It is in lacquer.
What I find interesting is that it has fittings soldered in place for (apparently) a Stewart Euphonium Stand, although I'm not sure it includes the peg itself. But by soldering on the fittings it would be a lot more satisfactory experience for one who wants to use the Stewart stand (which I did for a couple decades).
Price seems a bit high at $3500, but there is also a Make Offer button. Seller has a 100% positive rating, and shipping in the USA is only $40.
http://www.ebay.com/itm/Besson-New-S.../301570030582?