Constantine II AE folles. Siscia mint, struck 321-324 AD. 

CONSTANTINVS IVN NOB C, laureate head right.
CAESARVM NOSTRORVM around VOT X in wreath. 

Mintmark ESIS sunburst. 

RIC VII Siscia 182; Sear 17194.

With permission of EidMar Auction Oct. 2024.