A heavy silvered bronze mirror. By Sadatsugu, Edo period, 18th century

A heavy silvered bronze mirror. By Sadatsugu, Edo period, 18th century. Photo Bonhams

Cast in typical form and designed with a crane and its young before pine trees, the cord runner formed as a tortoise and with the heraldic crest of the Inaba family, signed Tenka ichi Izumi (no) kami Sadatsugu and Naritoshi. 5in (12.7cm) diameter. Sold for $976

Bonhams. Fine Japanese Works of Art, 22 Mar 2011. New York www.bonhams.com