Aureus (Coin) Portraying Emperor Maximianus Herculius by Ancient Roman https://www.rawpixel.com/image/9031659/aureus-coin-portraying-emperor-maximianus-herculius-ancient-romanFree Image from public domain licenseFollis (Coin) Portraying Emperor Constantius I by Ancient Roman https://www.rawpixel.com/image/8960898/follis-coin-portraying-emperor-constantius-ancient-romanFree Image from public domain licenseFollis (Coin) Portraying Emperor Galerius by Ancient Roman https://www.rawpixel.com/image/8960910/follis-coin-portraying-emperor-galerius-ancient-romanFree Image from public domain license