拍品专文
See Erich Köllmann, Berliner Porzellan 1763-1963 (Brunswick, 1966), Vol II, pl. 193 a and c for two examples with the same portrait relief and c with a very similar ground. See also Dietmar Jürgen Ponert, Kunstgewerbe I Keramik Hafnerkeramik und Terracotta Fayence Porzellan (Berlin, 1985), p. 212, no. 215 for a similar cup and saucer but with a slightly different biscuit relief portrait and ground.
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