Physical Dimensions: overall (diameter): 7.6 cm (3 in.)
gross weight: 135 gr (0.298 lb.)
Provenance: (sale, Sotheby's, London, 5 July 1994, no. 52). (sale, Morton & Eden at Sotheby's, London, 13-14 November 2012, no. 719); Andrew M. Brown, Anchorage; gift 2013 to NGA.