SHAH I : KUSHANO SASANIAN, KINGS OF MERV UNDER SHAPUR I, 240-270 AD, AE UNIT, 2.90 gm , 18 mm , Sasanian style bust Right / mounted figure carrying upright spear, riding left, traces of legend or streamers behind head. Alram 1218A var, Zeno #108674. Good Very fine , EXTREMELY RARE.