Watch List notes:

CYCLADES, Siphnos. Circa 540-525 BC. AR Hemidrachm (15mm, 2.95 g). Eagle flying right / Incuse square with rough eight-part division. Sheedy Series I, 12a (O9/R8 – this coin); HGC 6, 696; BMC 3; Traité I 1941; Weber 4713. Lovely cabinet tone, minor die break on obverse. VF. Extremely rare, one of only three hemidrachms of this series noted by Sheedy, and the only one in private hands; no additional examples in CoinArchives.

From the William H. Birkinshaw Collection. Ex Waddell FPL 75 (1999), no. 74; Münzen und Medaillen AG 88 (17 May 1999), lot 206; Münzen und Medaillen AG FPL 113 (May 1952), no. 14.