Kyrene, Kyrenaika, AR tetradrachm, ca. 525-480 BC, 17.27g. 

Silphium plant with four leaves, a fruit to left and right.
Gorgon’s head facing, tongue protruding, the hair depicted by 
dots, all within a dotted square within a deep incuse square 

BMC 10.
Extremely rare.

Ex Glendining & Co., London, 13 December 1963, lot 367.
With permission of Baldwins Ltd, the NY Sale 27, the Prospero Collection, lot 630.