Caligula, AE15 of Philadelphia, Lydia. 37-41. Magistrate Gaios Julios Diodotos. 2.88 gr.

GAIOS KAISAR, bare head right, star behind head.
FILADELFEWN GAIOS IOYLIOS DIODOTO. above and beneath 
winged thunderbolt.

RPC 3021; Weber F3365.

With permission of Gerhard Rohde on vcoins.com.