Kyrene, Kyrenaika, AR tetradrachm, ca. 400 BC, 13.16 g. 

Laureate head of Zeus Ammon facing slightly right, with ram's horn.
K-Y R-A N-A, silphium plant with four flowers. 

BMC 77b (p. xlix) (this coin); Jameson 2528; Niggeler 532

With permission of Baldwins Ltd, the NY Sale 27, the Prospero Collection, lot 634.