As far as I see it you have on these coins always a symbol on the
obverse behind
Athena's
head and a letter (Π, B, A or none) beneath
Pegasos.
On the coin here there seems to be a symbol (a
cornucopiae?) between
Athena's helmet and the crest, to the left of the crest and not to the right as usual.
So I would think that the thing beneath
Pegasos is a letter.
There is a coin in the
BnF with the same symbol on the
obverse and probably a die match for the
reverse, but with the
legend and this thing minted even worse than on the coin here
:
https://gallica.bnf.fr/ark:/12148/btv1b85888245Unfortunately there is no further description or reference given
.
Regards
Altamura