Fake Or Real? Three Roman Coins

I can't vouch for the top coin as I know virtually nothing about Greek coins. There are others on this forum who will chime in once they see it and they are knowlegable. The other two coins look authentic to me.

The Probus coin I have attributed as RIC 359: Probus Silvered AE Antoninianus. Ticinum Mint, 276-277 AD. IMP C M AVR PROBVS AVG, radiate, draped & cuirassed bust right / FELICITAS SEC, Felicitas standing left, holding caduceus & cornucopiae; SXXT in ex.

The Gordian III coin as RIC 95: Gordian III AR Antoninianus. IMP GORDIANVS PIVS FEL AVG, radiate draped bust right / VIRTVTI AVGVSTI, Hercules standing right leaning on club set on rock.

Ok, so I added in the weights. I completly forgot about them.

From the pictures, the Probus and the Gordian 111 look OK, but examination of the pictures is only one of many tests. From pictures only, the question of style can be considered. As DVC has noted, there can be style variations because this type of tertradrachm emanated from many mints, and should be compared to the date bases. I am not a specialist enough to identify these by mint.

As all of these coins, if genuine, are struck, there are usually small flan cracks to be found on the periphery. Have a look at these with a 10 x loupe or a coin microscope. The inside of the cracks should be rough, uneven and crisp.

If the detail of the metal surfaces on the inside of the cracks is very indistinct, you have to be lead to the idea that the coin may been pressure cast. Even the best quality casting cannot reproduce the characteristic distress metal disturbance found inside a REAL crack.

Have a close look around the detail on each coin with the loupe. In most but not all cases, metal flow lines are usually found on the surfaces of the fields next to higher relief detail. These lines are radial, because metal is forced out from the centre when the coin is struck.

This characteristic is found in a much finer extent in modern coins, and gives rise to the cartwheel lustre that we are all familiar with. These lines are much coarser on ancient coins, and when the mint lustre has long since disappeared the rougher radial flow lines on an ancient coin quite often survive.

From the pictures of the tetradrachm I cannot see any evidence of radial flow lines. They are obvious on the Gordian 111.

There does not appear to be any wear on the high points of the design of the tetradrachm at all. The coin seems to have the same texture of surface over the whole coin, which seems very odd for a genuine coin.

Yea, that looks more like it.

Oops! I called it a tetradrachm. Hmmm. That's not right!