Obverse: Aragonite rai, 40 cm at the largest diameter, 36.5 cm at the smallest (to the area of the edge that has suffered some chipping); the central hole measures 10 cm in diameter; its depth at this point, the maximum thickness of the stone, is 6.7 cm, while the outer edge measures 1.5 cm in average thickness; the surface of the stone is somewhat smooth and flat; there is a raised circular area 22.5 cm in diameter around the central hole.
Circular shaped aragonite "rai" or "fei", given by a Yapese chieftain ca. 1963 to Dr. Perry Rowe in appreciation for having attended delivery of the chief's child; subsequently passed down to Dr. Rowe's daughter, Sue Rowe Tucker, thence to her son Damon S. Tucker, who sold it to ANS. 22 lb. 12 oz. = 10.3 kg