When it comes to Ancient British coins, Rob Warwick seems to be very good at locating them. One of his latest finds is featured here, in the shape of a gold quarter stater.
It is listed as the Ratham Rose type (number 614) in Ancient British Coins, which is undoubtedly the best reference work on coins of this period. I traced only a single example, which was sold in December of 2015 as lot 62 in the Geoff Cottam collection.
The Cottam specimen was described as “. . . areas of corrosion with what appears to be base metal? underneath, strong centres, good very fine, excessively rare.” The hammer price was £750.
Rob’s example of the Rotham Rose type is a little weak in places but good enough to grade near VF. With only images to work from I can’t tell if it is solid gold or if it has a base metal core. If it is the latter then it could sell for a figure similar to the Cottam specimen. If it is solid gold then I’d say at least £1,000.