Green patina.
Roman Imperial
Maximianus Herculius (286-305), Follis 317-318, Siscia mint
Obverse: veiled head right
DIVO MAXIMIANO SEN FORT IMP
Reverse: Maximianus seated left on curule chair, raising hand and holding sceptre, SIS in exergue
REQVIES OPTIMORVM MERITORVM
Diameter 16 mm, weight 1.36 g