Ancient Roman symbols of monetary and weight units
Symbols of ancient Roman monetary and weight units are brief designations of such ancient Roman coins as the denarius, quinarius, sestertius, as, as well as some other monetary, accounting, and weight units of Ancient Rome. They appeared during the late Roman Republic (264–27 BC) both on the coins themselves and in written documents; some were used until the 20th century, for example, the symbol of the scruple in the apothecaries' system of weights.
Source: Wikipedia — Ancient Roman symbols of monetary and weight units (CC BY-SA 4.0)