I don t think there is a problem . I bought the coin from Savoca. I checked myself the coin and toke it to my coinclub here in Antwerp .
I'll make a picture when back in Antwerp .
The weight standard of the earliest silver Roman coins was derived,like the silver purity of the metal ( about 93 % pure) from other Italian coinages , especially that of Neapolis .
About 280 BC , changes started to occur. The weight standard of Taras and other more southerly mints like Heraclea, Thourioi,Croton ... was reduced by about 16 % from 7,9 gr to about 6.5 gr and also the level of minting by Greek Italian towns started to decline or stopped : Metapontum , Thurioi,Croton,Heracla ...Only Taras and Neapolis continued ,probably down to about 250 BC with a brief revival in the second Punic war in Metapontum and Taras on Punic weight standards .
