Bidspirit auction | very fine antler / bone

very fine antler / bone netsuke by gyokuzan - Boy and frog, by gyokuzan, late 19th cent. signed, H 3.6 cm, L 3 cm. W 2.4 cm [no.54 in 1983.catalog] [Source: from a private collection. Insurance documents are attached to the item, indicating that the item was assessed in 1983 by the US Appraisers Association, by Bob Altman.]