Four complete pyxides in this group are know in addition to the above unpublished piece. One is in Cologne (Romisches Germanisches Museum). Another is in the Metropolitan Museum of Art, New York (and is almost identical to the above piece although slightly larger and with its lid). The third was sold in Paris (Drouot 19-20th May 1987, lot 426) and published by N.Thierry "A propos d'une nouvelle pyxide d'époque Romaine à décor d'émail millefiori", Antike Kunst Bale, 1962, p.65-68, and the fourth was in the Nelson Bunker and William Herbert Hunt collection, published in the exhibition catalogue "Wealth of the Ancient World", no. 53, and Sotheby's, June 19th, 1990, lot 53. There is also a fragmentary example in Saint Germain-en-Laye. These known pieces, from the Rhineland, Kertch and France, are typical of the enamel production of the Celtic territories of the 1st-3rd Century A.D. They would have been used for such precious commodities as perfume, incense and unguents. For a discussion of the group, see W. H. Forsyth: Provinical Roman Enamels recently acquired by the Metropolitan Museum of Art, The Art Bull. 32, 1950, 296-308. The above pyxis is an important addition to this rare group and the only one to have been found in Britain.