IONIA, Ephesos. Circa 550-500 BC. AR hekte or hemidrachm (1,72 g). Persic standard. Bee / Rosette within an incuse square. Slightly granular surfaces. Lightly toned. Very rare., Karwiese Series IIIa, SNG Kayhan 1227-30, Grade: 1+, Ex H.D. Rauch, Summer Auction 2011, 19.9.2011, lot 248