This is a fine, intact Greek bronze ring.
The insignia is engraved with a horned beast, perhaps a bull, which could point to this ring being Mithraic.
The ring is intact with an excellent, even, brown-green patina classic of Greek bronze objects. Very desirable and wearable example.
Condition: Intact and wearable. A single crack to the band, but the piece is still not overly mineralized, so the metal is strong and renders the piece quite wearable.
Dates to approximately 450 BC.
Ring measures 17.73 mm inside diameter. This translates to a UK size O 1/2, European size 56, US size 8.
Provenance provided to purchaser.
