Mamertini, Messana, Sicily, AE. 288 BC. 3.88 g. 

DIOS, Youthful head of Zeus left.
MAMERTINWN, eagle standing left on thunderbolt, wings 
spread, retrograde R in left field. 

BMC 15; SNG ANS 413; Hoover HGC 874; Särström 105–116.