Beads 28 (2016) O.P.
Imitation Amber Beads of Phenolic Resin from the African Trade, by Rosanna Falabella
Examination of contemporary beads with African provenance reveals large quantities of imitation amber beads made of phenol-formaldehyde thermosetting resins (PFs). This article delves into the early industrial history of PFs and their use in the production of imitation amber and bead materials. Attempts to discover actual sources that manufactured imitation amber beads for export to Africa and the time frame have not been very fruitful. While evidence exists that PFs were widely used as amber substitutes within Europe, only a few post-WWII references explicitly report the export of imitation amber PF beads to Africa. However they arrived in Africa, the durability of PF beads gave African beadworkers aesthetic freedom not only to rework the original beads into a variety of shapes and sizes, and impart decorative elements, but also to apply heat treatment to modify colors. Some relatively simple tests to distinguish PFs from other bead materials are presented.
The Fichtelgebirge Bead and Button Industry of Bavaria, by Karlis Karklins, Sibylle Jargstorf, Gerhard Zeh, and Laure Dussubieux
Venice and Bohemia are generally considered to be the principal bead manufacturers of Europe. Yet Germany, especially the Fichtelgebirge region of northeastern Bavaria, produced large quantities of glass beads for the world market beginning in the 15th century, if not even earlier, and continued to do so well into the 20th century. The Fichtelgebirge industry is especially notable for two things: 1) the utilization of furnace-winding technology which, based on our current knowledge, was not employed to a significant degree elsewhere in Europe during the post-medieval period, and 2) the localized use of Proterobas, a greenish igneous rock, to produce opaque black beads and buttons without any additives until the early 19th century. This article presents a history of the industry and describes the products and the technology involved. It also provides a preliminary assessment of the chemical composition of the various products.
Beads and Pendants from the Tumuli Cemeteries at Wadi Qitna and Kalabsha-South, Nubia, by Joanna Then-Obłuska
More than 500 beads and pendants were excavated by a Czechoslovakian team in the early 1960s at two sites in Lower Nubia. The beads were associated with 40 tumuli in the Wadi Qitna cemetery and two tumuli in the Kalabsha-South cemetery. These 4th-century cemeteries are related to the Blemmyes, the Eastern Desert dwellers whose pottery has been commonly recognized in the region between the Nile Valley and the Red Sea coast at a time of intensive overseas trade contacts. The bead assemblage, stored at the Naprstek Museum in Prague, was recently restudied and its materials and parallels could be more specifically identified. In addition to ostrich eggshell of Nubian Desert origin, Red Sea shells and glass beads of Eastern Mediterranean and South Asian origin are present. Some beads are modern European intrusions.