Lot Essay
For a similar pair with the same unusual mark within a double square see S Marchant & Son, Exhibition of Qing Mark and Period Monochromes and Two-Colored Wares, 1992, Catalogue pl. 15. A pair of dishes with a pale cobalt-blue glaze of the same size in the Percival David Collection is illustrated in the Catalogue, Section 6, nos. B560 and B561