Millefiore enameling was widely popular in Gaul, where it was often used to decorate disk brooches and vessels. In this technique, the artist fuses together glass rods of different colors. The multicolored rods are then cut into cross sections, which are placed in a metal base and heated sufficiently for them to adhere. The result is an intricate pattern of flowers and checkerboards.
Said to have been found in Olbia, Ukraine.; Joseph Chmielowski, Ochakov, Ukraine ? (sold 1922); his sale, American Art Galleries, New York (February 24, 1922, no. 760)
Illustrated catalogue of the remarkable Greek archaeological collection from Olbia in South Russia excavated during the past ten years by, and under the supervision of, the present owner Mr. Joseph Chmielowski. New York: American Art Association, February 23–25, 1922. no. 760, (unpaginated).
Ricketson, Edith B. "Barbarian Jewelry of the Merovingian Period." The Metropolitan Museum of Art Bulletin, n.s., 5, no. 5 (January 1947). p. 136.