Aes grave ("heavy bronze") is a term in numismatics indicating bronze cast coins used in central Italy during the 3rd century BC, whose value was generally indicated by signs: I for the as, S for semis and pellets for unciae. Standard weights for the as were 272, 327, or 341 grams, depending upon the issuing authority.[1]
The main Roman cast coins had these marks and images:
Image | value | mark | |
---|---|---|---|
Ianus | As | I | |
Semis | S | ||
Triens | four pellets | ||
Hercules | Quadrans | three pellets | |
Mercury | Sextans | two pellets | |
Uncia | one pellet |
Main series were from Rome, Ariminum (Rimini), Iguvium (Gubbio), Tuder (Todi), Ausculum (Ascoli Satriano), Firmum (Fermo), Hatria - Hadria (Atri), Luceria (Lucera), and Latin central Italy. Other series have unknown provenance.