A small Imperial copper red dish, Qianlong six-character seal mark in underglaze blue and of the period (1736-1795) the dish is cover with a even sang-de-boeuf glaze neatly stopped at the foot rim, 11.1 cm diameter. Provenance: Christie's, Hong Kong, 16-17/1/1989. Mossgreen, 28/11/2017, lot 643.