SIGNED HORYUSAI KOICHI SAKU AND ENAMEL SEALED TAKASAKI, MEIJI PERIOD (LATE 19TH CENTURY)

For a similar example by Takasaki Koichi see Oliver Impey and Malcolm Fairley eds., Meiji no Takara, Treasures of Imperial Japan: The Nasser D Khalili Collection of Japanese Art, Metalwork Part I (London, 1995), cat. no. 65