Roman Empire. Diocletian, 284-305 AD. AE Follis. Ticinum Mint. Hercules. 24mm, 3.21g.
 
Obv: IMP C C VAL DIOCLETIANVS P F AVG Radiate, draped and cuirassed bust of Diocletian to right. Rev: HERCVLI CONSERVAT, Hercules Farnese standing right.
 
A brown tone.