SECVRITAS REIPBLICAE which means “the restoration of tranquility and security to the empire”. The reverse depicts Victory advancing with a wreath to place on the head f the victorious and carrying a palm branch for peace. This coin was minted during the Constantinian era of Rome and features the current emperors portrait on the obverse along with the inscription. Victory is depicted by the goddess Nike (the Romans called her Victoria). To be researched. Guaranteed authentic by Poor Richard’s Certified Classic Coins.