Details
A Chinese 27-row abacus,
with lignum vitae and brass frame -- 15 1/8in. (38.4cm.) long; and a Korean ivory diptych compass dial, with folding plate, the underside incised with place names and latitudes, the compass with needle (glass missing) -- 5 1/8in. (13cm.) long
See Illustration (part lot) (2)
with lignum vitae and brass frame -- 15 1/8in. (38.4cm.) long; and a Korean ivory diptych compass dial, with folding plate, the underside incised with place names and latitudes, the compass with needle (glass missing) -- 5 1/8in. (13cm.) long
See Illustration (part lot) (2)