Cf. the Daoguang bowl of this pattern in the Roemer Museum, Hildesheim, illustrated by Wiesner in the Ohlmer Collection Catalogue no.134; the similar slightly larger bowl in the Köln Museum für Ostasiatische Kunst was included in their Exhibition Kunst der Ch'ing-Zeit, 1973, Catalogue no.51; and another from the Weishaupt Collection is illustrated by Avitabile, From the Dragon's Treasure, no.75