Extremely rare antoninian, on the Coinarchives we have reached only 4 quotations, which the last two from 2019 and 1016, with the auctioned amount of 160 EUR and 240 EUR.
Roman Imperial
Probus (276-282), Antoninianus 277, Siscia mint
Obverse: a bust of the emperor in a magnificent consular cloak, with a head in a radial crown and a scepter ending with an eagle, which he holds in front of him
IMP C M AVR PROBVS PF AVG
Reverse: she-wolf feeding the twins Romulus and Remus, XXIT below
ORIGINI AVG
Weight 3.42 g