Westermark, Coinage, Period I, Group IV, 256 (O86/R177); HGC 2, 91.
8.44 g
19.40 mm
Obv.: sea eagle standing to the right; above: AK, below chest: RA (retrograde). Rev.: crab within incuse circle, below: CAΣ. Extremely rare in this condition. Perfectly centered.