This would cost £27 new from Maman Jojo Bebe and John Lewis.
It has been well used by my 2 DC (but obviously properly cleaned).
It looks like this: www.johnlewis.com/230645654/Product.aspx
It is a great potty -esp for older/ larger children- and easy to clean because the insert comes out.
PM me or post on this thread if you want it.