Domitian AE As, 

IMP CAES DIVI VESP F DOMITIAN AVG PM, Laureate head of 
Domitian right.
TR P COS VII DES VIII PP, S-C, Minerva standing left, holding thunderbolt and spear, shield at side.

RIC 238b, Cohen 558, BMC 270

Note the original image had been incorrectly identified
by the seller. This image courtesy of Sear Roman Coins
And their Values, by David Sear.