I need help to identify this poss. 5th or 4th cent. Greek (?) coin, please.

[186]

I have this (bronze/copper?) AE 16.3 mm., (3.4 mm thick), 4.56 gm., coin that I am having great difficulty identifying.
The 'obverse' appears to have the bust of a woman, with her hair tied up, facing right, (off centre in the lower right quadrant). There appear to be letters behind head which may be "K M" or even "ROMA"? There may be 'radiate' lines from around her head which could be a Tyche-like crown/tiara?
The 'reverse appears to have two lines of letters which could be "CHL" (or similar) over "MYAI" or "MYAK" in a 'vine' wreath, with the vine twisted (joined) at the bottom and the 'laurel' leaves travelling around the edge.

I am hoping that this description may help.
Any assistance is greatly appreciated.

[186]

Nothing familiar to anyone?

[Britannicus]

I have one of these too. 16 mm., 3 h, 3.81 g. Probably Roman Provincial, no later than 1st cent. AD.

The obverse legend runs anticlockwise, and reads .......QVIN D(?) M (or Æ)...... The QVIN could be part of a name, or refer to the duumviri quinquennales known from several Spanish cities, Buthrotum, and Corinth.

The reverse has an inscription in a wreath: CHL (or CAEL) / M(?)....AI.

Any suggestions?

[Britannicus]

I'm guessing Carthago Nova in Spain, with the reverse alluding to C. Helvius Pollio, who was a duovir quinquennalis (the QVIN on the obverse seems to point in that direction). I sent this suggestion to RPC Online, but they didn't respond.