An ebony netsuke of a frog on a logAttributed to Seiyodo Tomiharu (1733-1810), late 18th/early 19th centuryThe frog squatting on an old rotten log, its skin embellished with ukibori pimples, the underside of the log depicted with a gouged technique, unsigned. 6.1cm (2 3/8in).注脚黒檀彫根付　枝に乗る蛙　無銘　18世紀後期/19世紀前期Provenance:T. S. Davy Collection.W. W. Winkworth Collection.M. T. Hindson Collection.Published: Davey, MTH, p.248, no.766.Earle, Huthart, p.64, no.45.