I found this a little while back while metal detecing, have been told its a "Gallo-Belgic 'Gallic wars' Ambiani 'E' Uniface Stater". It's been in a box for a while as I have no where to properly display it and therefore I would like to sell it. I have no idea on what sort of price these things go for and any advice would be greatly appreciated. Thanks in advance. Josh EDIT: Around 6 grams and 1.9cm across (Point A to point B).
Sadly I don't have very accurate scales, but it's reading at around 6g. its 1.9cm across if that helps.
It looks like they go for 400-550 in similar condition to what yours is in, based on some quick searching