Double AE unit-- largest British Celtic AE; heavy specimen, full legend, dark green patina; 21 specimens known, 9 in museums

Evans, “Head probably of Augustus, Tasciovanus spelt with A instead of O” De Jersey: “This issue of Tasciovanus is the only known example of a British double bronze unit-- possibly an imitation of the Roman AS, an experiment that also occured amoung the Lexovii in Normandy in the post-Gallic war period. The rarity suggests it was not a popular experiment. This is one of the heaviest and clearest in the CCI and unusually have the full TAS inscription on the reverse, the S usu being off the flan. The head may be a portrait of Tasciovanus himself as Evans suggests.