Ascending 3rd valve
Super rare horns here!
A Paxman model 22. This has an ascending third valve on Bb and F horns and a stopping valve. This means the three valves give the keys of E, Eb and G. This allows for wonderful top As on third valve Bb horn, but it also means that all of the usual fingerings involving valve number 3 do not work! This is one for the academics or specialists, or those with knowledge of french fingering systems.
For the right person this will be a fantastic instrument once they’ve worked it out…
Ready for the challenge!?