Sardonyx Cameo with Portraits of the Roman Emperor Commodus and his Wife, the Empress Crispina (AD 180-192)

Commodus in the guise of Herakles, wearing the skin of the Nemean Lion
early 18th Century
Height: 3.9 cm. (1 9/16 in.)
Width: 3 cm. (1 3/16 in.)
ex: the collections of the Dukes of Palmela, Lisbon, second half of the 19th Century
Published: Antiquarium Ltd.; Ancient Treasures XIII (New York, 2015) inside back cover
cf. ; BEAZLEY GEMS ARCHIVE, Oxford University no.461.22 (ex. Marlborough collection)
#5313