> believe it's a 10 yen, either Y#71 or Y#72 (but I might have to check, the
> coin isn't here).
> I was wondering if anyone knew the difference between old script and
> regular script? Since I have no other coins to compare this to... I'm SOL
> for identifying it.
have all had the same scripting style. There have been two minor varieties
(ridged edge and then plain edge) but the scripting has all been the same.
Earlier 10 yen coins were made of gold and there were a number of varieties.
Trying to guess what you mean by a change of script, some post-war 5 yen
coins had a brush-stroke script and later ones had a gothic script. Neither
of these scripting styles is old and neither is regular (well, they're both
regular, but so are tons of others).
If you're having trouble identifying it, and if it's a post-war coin, then
it's surely a 5 yen coin. All other current denominations have the number
of yen written in western style in addition to the legal tender value.