I don't have a scale or measure right now but I believe it was around 7.2g and I'd guess 20+mm. I bought this five years ago when I was a new collector, in fact it was one of two ancients I bought at a coin show that started my ancient collection. The seller let it go for $10 and told me it was from the Second Punic War. I've been told that the reverse may be a horse head which would indicate it was from a time outside the Second Punic War but the more I look at examples the more I think it's a women's head. I have yet to find an exact match where the horse is standing right looking back with the odd "ghost legs" and the tree (?) or pole to the right of the horse. The closest I've found is SNG Cop 376 which is the example below. I've found some mentions online that the SNG Cop 376 may have been produced by a travelling mint in Italy or perhaps by Italian moneymakers who sided with the Carthaginians in the war. Does anyone have any good information or sources for this?