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I dunno, I like the drunken celt! [ATTACH]
[ATTACH] AUGUSTUS (OCTAVIAN) AE Dupondius OBVERSE: CAESAR DIVI F, bare head of Octavian right REVERSE: DIVOS IVLIVS, wreathed head of Julius...
Oh c'mon! You were never young! [ATTACH]
[ATTACH] THRACE, ABDERA Tetrobol OBVERSE: Griffin springing left REVERSE: Magistrate's name around linear border, within which head of Hermes...
I think it would be better if you posted each coin separately as you will get more responses.
Hard to say from the image, but I'm inclined to say authentic (just don't take my opinion to the bank - it's not worth much).
You forgot another option. "Once in a while"
[ATTACH] L. THORIUS BALBUS ROMAN REPUBLIC; GENS THORIA AR Denarius OBVERSE: Head of Juno Sospita wearing goat-skin headdress, acronym I. S. M....
[ATTACH] LAMPSAKOS, MYSIA THRACE AR Diobol OBVERSE: Janiform female head, in circular earring and necklace REVERSE: Helmeted head of Athena...
[ATTACH] TETRICUS I Antoninianus OBVERSE: IMP C TETRICVS P F AVG, radiate draped bust right REVERSE: VIRTVS AVGG, Virtus standing left with...
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