i thought i give this forum a shot, since all my research has yielded nothing so far.

i'm looking to identify the mint for an Alexandrian tet i purchased many years ago. i have tried Forvm, but without much luck so far. perhaps someone here can help?
and sorry, but i have no image to share.

it grades aEF, of fine style and well centered with a beautiful blue tone.
it is a lifetime issue, with no emblem beneath the throne, but with an eagle's head facing left in the field near Zeus' knee.
the dealer i bought it from attributed it to the Amphipolis mint, however i have never found anything to corroborate this, nor have i seen another like it.

is anyone familiar enough with these issues to verify or condemn this attribution?

thank you in advance for any possible help with this. :)