Herennia Etruscilla. AR-Antoninianus, AD 251, Antioch; 21 mm, 4.02 g. 

HER ETRVSCILLA AVG, diademed and draped bust right, set on crescent.
AEQVITAS AVGG, Aequitas standing left, holding scales and cornucopiae. 

RIC 64; Cohen 3. 
Rare.

With permission of Leu Numismatik AG - Web Auction 27, Lot 1918, Sept. 2023.