THIS ARTICLE IS BEST VIEWED ONLINE, SO YOU CAN SEE THE COLORS. Archaeologists show off rare Roman find LONDON, England (CNN) -- Archaeologists excavating a site in East London have made an "extremely rare and unprecedented" find -- a delicately detailed dish made of hundreds of pieces of tiny glass petals, the Museum of London Docklands announced Wednesday. The "millefiori" dish (the name means "thousand flowers") was found buried in the grave of a Roman Londoner, the museum said. Based on the other grave goods found at the site, archaeologists believe the person buried there was wealthy, the museum said. The dish was highly fragmented when archaeologists unearthed it, the museum said, but it had been held together over the centuries by the earth around it. A conservator at the museum reassembled the dish, which is now on display at the Museum of London Docklands. "Piecing together and conserving such a complete artifact offered a rare and thrilling challenge," said conservator Liz Goodman, who did the work. "We occasionally get tiny fragments of millefiori, but the opportunity to work on a whole artifact of this nature is extraordinary. The dish is extremely fragile but the glasswork is intact and illuminates beautifully nearly 2,000 years after being crafted." The glass petals are blue with white borders and are each indented. They were originally embedded in opaque red glass, the museum said, and while the red coloring has diminished across most of the dish, it can still be seen around the edge. "The complexity of its manufacture indicates that the dish was a highly-prized and valuable item," the museum said in a statement. Such beautifully crafted vessels were in vogue in the 1st and early 2nd centuries, the museum said. Dating is under way to determine the precise period of the find. The excavations that uncovered the dish are part of an ongoing dig at the extensive eastern cemetery of Roman London, which was then called Londinium. The site now lies in the neighborhood of Aldgate. The cemetery -- which, by law, lay outside the city walls -- spanned more than 400 years of Roman occupation from the late 1st to early 5th centuries, the museum said. History of millefiori Millefiori-decorated objects have been created intermittently from the time of ancient Mesopotamia to the present day. Bowls of fused millefiori canes are known to have been made in ancient Rome and Alexandria, and there are a few references to examples of millefiori work during the Renaissance. By the eighteenth century, however, the technical knowledge for the manufacture of millefiori was lost. It was not until the nineteenth century that a revival of the technique appeared. By the end of the 1830s, millefiori were manufactured successfully in Silesia-Bohemia. Within two or three years of its rediscovery, factories in Venice, England, and France were also producing quantities of millefiori canes. Process of Manufacture Cut from long, thin glass rods, millefiori canes were prepared in the following manner: The glassworker took a gather of molten glass on a pontil, or long iron rod, and rolled it back and forth on a marver, or flat surface, until it formed a solid cylinder. The cylinder was then pressed into a diecut mold that had a geometric shape or the outline of a specific animal or figure. The piece was further embellished by dipping on additional layers of varying colors of glass. As each layer was added, it was rolled onto the ever-growing cylinder or pressed into increasingly larger molds to vary the cane's ultimate design. Creating a patterned glass cane The finished cylinder of glass, approximately six inches long and three inches in diameter, was reheated until pliant. Pontil rods attached to each end were pulled apart, stretching the yielding cylinder pencil-thin. The stretched cooled cane was then sliced into hundreds of little discs, each an exact miniaturization of the original design. For more complex designs, lengths of the stretched canes were cut into six-inch pieces, bundled in a geometric pattern, heated until fused together, stretched pencil-thin, and slices again. In this manner, glassworkers were able to produce unlimited millefiori cane designs from a limited selection of molds Once a quantity of millefiori canes was produced, they were combined into a variety of patterns limited only by the ingenuity of the artisan. To create a paperweight, a design of canes was arranged in a metal ring, and a gather of molten glass on the end of a pontil rod was brought down upon the design. The canes adhered to the molten glass. The rod was repeatedly dipped in glass until an adequately thick lens was produced over the millefiori design. While still plastic, the glass was blocked and shaped. Slightly cooled to a stable state, it was broken off the pontil rod and placed in an annealing oven to cool slowly. Cane types Making a paperweight containing millefiori There are specific kinds of canes canes. formed by the glassmakers. They include, in addition to the myriad types of flower-like patterns, the simplest rod canes, star canes, cog canes (shaped liked the cogs of a gear wheel), Clichy Rose cane, and silhouette canes, which contain a figure of an animal, person, or plant, a date or maker's mark. Millefiori patterns in paperweights Millefiori weights are categorized into types and named according to the configuration of the canes. Scrambled millefiori weights feature what looks like a stirred mixture of different canes Single cane millefiori weights contain just one centerpatterned cane on a textured background Close millefiori weights contain a small forest of canes thrusting up from the base side by side with little space between them. Chequers millefiori weights get their name from the filigree twists that act as separators among the space canes. Concentric millefiori weights may be closely positioned or spaced in rings around a center cane. Pattern millefiori weights feature canes that are arranged in patterns such as lines, flower-like forms, or symmetrical rings. Garland millefiori weights contain canes arranged in loops, lobes, C-scrolls, or circlets. Carpet ground millefiori weights look like a carpet of small identical ( often star or rod) canes interspersed with larger spaced millefiori canes. Name______________________________ Rare Roman find Each question is worth 5 points. For full credit, you must answer in complete sentences and include all appropriate information. Explain your answers! 1. The archaeologists dug up a glass dish made that is over 2,000 years old. Why wasn’t it destroyed in all that time? 2. Where, exactly, was the dish found? Who owned the dish originally? 3. What is “millefiori”? 4. Even though it was very popular in ancient times, the art of millefiori had been lost by the 1700s. When were the techniques rediscovered? 5. The discs used to decorate millefiori objects are sliced from multi-color glass “canes.” Describe how millefiori canes are manufactured (continue on the back of this page if necessary):