Caria, Cos. Tetradrachm; Caria, Cos; c. 285-258 BC, Tetradrachm, 14.92g. Requier, Cos-7 (D1/R7) (this coin). Obv: Head of Herakles r., wearing lion-skin headdress. Rx: K - O?? - ? above crab and below ???O? and bow case, all in shallow incuse square with dotted border. Ex Berk 197, 27 April 2016, lot 119. Ex Poinsignon 38, 1994, lot 631.This is an exceptionally beautiful example of this highly unusual issue. While the obverse relates to tetradrachms of Alexander, though of much finer artistic style, the reverse with a crab above bow in case is repeated nowhere else in Greek coinage. EF