1 Quadrans

Iguvium — modern Gubbio in Umbria — was among the handful of central Italian communities that issued heavy cast aes grave during the mid-Republican period, before Rome's monetary dominance rendered local bronze coinage obsolete. The weight of surviving specimens varies considerably, suggesting production by local foundries working without strict metrological control rather than any centralised authority enforcing a standard.

The Iguvine Tablets, the famous bronze inscriptions recovered from the same city, confirm the sophistication of local religious and civic administration — yet the coinage tradition here was short-lived, extinguished as Roman confederation tightened through the 3rd century.