ancient Greece
ELIS, Olympia. 78th-80th Olympiad (468-460 BC). Silver Stater (21mm, 11.74 g).
Eagle flying left, wings spread above and below, grasping serpent in its beak and talons / Vertical thunderbolt with wings above and volutes below, A (F retrograde?) flanking, all within incuse circle. Seltman, Temple -, BCD Olympia 5-6 var. (ethnic), HGC 5, 288. Good VF!
Estimate: 2500 - 5000 EUR