Caligula and Antonia AE20 of Thessalonika, Macedonia. AD 37-41. 8.67 g.

G KAISAR SEBASTOS, laureate head of Caligula left.
ANTONIA SEBASTH, veiled head of Antonia left. 

RPC 1573; Varbanov 4219.

With permission of Edgar L. Owen on vcoins.com, Feb. 2013.