Mionnet Supplement 2, published in 1822, had pretty accurate line drawings. Do you have any coins illustrated in a Mionnet volume?
While a nice coin, I do not see calling it the one illustrated in the line drawing. Same type, certainly, but not the same dies or specimen.
Excellent coin of one of the most powerful women in Roman history! Cool resource, btw. She really looks better than this and demands a reshoot... Anyway, I'm having a hard time using forum to research if any of her Thessalonica coins are in there but thought I'd share despite the set back: Julia Mamaea Macedon. Thessalonica. AD 225-235. Bronze Æ 24mm., 12,16g. IOYΛIA MAMEA AYΓ, diademed and draped bust right / ΘECCAΛONIKAIΩN, Nike walking left, holding Kabeiros in right hand and palm branch in left. very fine Varbanov 4484 var. (legends); BMC 108 var. (legends); Touratsoglou 32 var. (legends); Moushmov 6779 var. (legends
Yes, same type, not the same coin. But the vast majority of coins listed in Mionnet are not illustrated; that's what makes this coin so fun.