Watch List notes:

Euboea, Karystos, Tetradrachm (?), c. 510-480 BC; AR (g 8,29; mm 26; h 12); Bull standing l. with head reverted, Rv. KA, cock standing r. All within incuse square. SNG Copenhagen -; BMC -; Traitè 1084.
Old cabinet tone. Extremely rare. Very fine