Toward the end of the second century BC, both sides were used to display the moneyers' choice of designs. Titus Didius, AR denarius, 113-112 BC Our next coin shows several minor points of interest to numismatists. Between these two issues, the spelling of the family name was changed from Deidia to Didia. Catalogs often use the 'modern' spelling even though our coin clearly uses the old version. The obverse head of Roma was engraved in High Relief standing up from the fields of the coin enough that our edge view of the coin shows an exceptional 3D effect.
Ancient coins vary greatly in terms of the relief but almost all are much higher than modern coins.
Stacking more than half a dozen of these coins is difficult. Under the chin of Roma we see the crossed X denomination mark valuing the coin at 16 asses. The reverse of this coin has been interpreted in different ways by different scholars. Some see a contest between gladiators. On the left, one uses a whip while the other, on the right, has a staff.