282 AD., Probus, Rome mint, Æ Antoninianus, RIC 187e. (AEQVITI series I )

Probus, Rome mint, officina 4, 282 AD.,
silvered Æ Antoninianus (21-23 mm / 5,10 g), AEQVITI Series I of Rome,
Obv.: PROBV - S P F AVG , radiate bust of Probus left in consular robe, eagle tipped scepter in right.
Rev.: ROMAE AETER / R V Δ , temple, within stands statue of Roma seated facing.
RIC V 187e .

"Coins of Probus with Coded Markings of AEQVITI Embedded in the Mintmark." The first letter "R" indicates the Rome mint. The letter "V" in the middle of the mintmark is the fourth letter of the codeword AEQVITI. The last letter "Δ" indicates this coin was struck by the fourth officina (mint workshop). The letters of the word AEQVITI are coded in the mintmarks of coins from all the officinae of the mint, with the specific letters of the codeword assigned to each officina in order corresponding with their officina numbers.