Gordian III, AE 37 mm Medallion of Perinthos, Thrace.

AVT K M ANT GORDIANOC AVG, laureate, cuirassed bust right,
aegis on chest. 
PERINQIWN DIC NEWKOR-WN, Serapis standing right, holding 
sceptre in left arm, wreath in raised right hand, facing 
Homonoia, standing left, holding wreath over a burning 
altar between them. 

Varbanov 543 (this coin); Schönert-Geiss 860; Moushmov 4693.

With kind permission of Numismatik Lanz, Auction 2004