Mamertini, Messana, Sicily, AE hemilitra. 288 BC. 8.11 g. 

Laureate head of Apollo right, lyre behind head.
MAMERTINWN, Nike standing left, holding wreath and 
palm branch. Six dots (mark of value) in right field. 

BMC 42; SNG ANS 458; Hoover HGC 60; Särström 392–399.