Roman Ring with Minerva Gemstone

1st century AD. A bronze finger ring with carnelian gemstone with intaglio standing figure of Minerva with helmet and spear; accompanied by a museum-quality impression. 7.26 grams, 28.13mm overall, 20.44mm internal diameter (approximate size British T, USA 9 1/2, Europe 21.26, Japan 20) (1"). Property of a Surrey collector; acquired in the early 1970s.
Condition Report: Fine condition. A large wearable size.