HM Brown flexee finesse, recent model but the 15 inch seat is made with a fixed gullet (but flexible so moulds to shape of wider pony) rather than interchangeable plates.
Used lightly for 6 months on Welsh Section C pony for hacking only and in vgc, no faults/damage.
Selling as no longer have use for it.
£585 + postage
Pictures to be added (or if you are interested before i get round to it, message me).