tenbobbit, I think is more likely to be from Thourioi
https://www.acsearch.info/search.html?id=7053938but the Pella coin you posted is also very near, I study it earlier this morning
the difference is mainly on the head
also at the lot my coin is included, all the coins so far are from ancient Italy, Kentoripai, Sicily, Neapolis (Naples), Lucania (i have a couple more with Bull to identify from the same lot)
that's the main reason I believe is from Thourioi
but the weight still remains an issue
for now is uncertain with Thourioi as first option and Pella as second