Image rights: wildwinds.com

Egypt, Ptolemy II, Æ35 (hemidrachm) (42.82g) 

Head of Zeus-Ammon right. 
[RTOLEMAIOY BASILEWS] Eagle standing left, looking back, wings 
open, >E like monogram between legs, rectangular countermark of a 
cornucopia on left wing. 

Svoronos 1142; S7785var. The cornucopia was a symbol of Ptolemy 
III. Svoronos 1142 was a "popular" type of coin for these
countermarks.