Prospective purchasers are advised that several countries prohibit the importation of property containing materials from endangered species, including but not limited to coral, ivory and tortoiseshell. Accordingly, prospective purchasers should familiarize themselves with relevant customs regulations prior to bidding if they intend to import this lot into another country.
Christie's, New York, 19 October 1981, lot 285 (the Russian example).
Sotheby's, Belgravia, 16 November 1980, lot 141 (the 'Writing Set').
D. Tarshis, Objects of Fantasy: Glass Inclusions of the Nineteenth Century, The Corning Museum of Glass, New York, 2001, p. 30, no. 16 (the Pietro Bigaglia).