Watch List notes:

Ptolemaic Kingdom of Egypt, Ptolemy I Soter Æ Diobol. Alexandria, after 294 BC. Laureate head of Zeus right / ΒΑΣΙΛΕΩΣ ΠΤΟΛΕΜΑΙΟΥ, eagle with wings spread, standing left on thunderbolt; I above monogram to left. CPE B60 var. (A above monogram, same obv. die as pl. 3, 60a); Svoronos 279-80 var. (same). 13.98g, 28mm, 12h.

Good Very Fine. Extremely Rare; unknown to both Lorber and Svoronos and no other examples on CoinArchives.

From the inventory of a UK dealer.