An ebony netsuke of two frogs on a rotten logAttributed to Seiyodo Tomiharu (1733-1810), late 18th/early 19th centurySmooth-skinned, the frogs squatting on a gnarled and rotted log, the differing textures carefully and cleverly contrasted, signed Seiyodo. 8.2cm (3¼in).注脚黒檀彫根付　丸太に蛙　銘 「青陽堂」　18世紀後期/19世紀前期Provenance: W. W. Winkworth Collection.M. T. Hindson Collection.Victor Topper Collection.Published: Hull Grundy, NCIS, fig.25.Davey, MTH, p.247, no.765.Lazarnick, NIA, p.1122.Meinertzhagen, MCI, vol.2, p.880. Rokusho 20, p.9, no.8.Burditt, ICWT, p.34, fig.8.Earle, Huthart, p.70, no.51.