Trade beads Trade beads Trade beads (sometimes called aggry and slave beads) were otherwise decorative glass beads used between the 16th and 20th century as a token money to exchange for goods, services and slaves (hence the name). Trade beads were used to African resources by early Europeans. This included African slave trade. The beads were integrated in Native American jewelry using various beadwork techniques. Aggry beads are a particular type of decorated glass bead from Ghana. Made to ease the passage of European explorers and then traders mainly across the African continents, the beads were made throughout Europe although the Venetians
Powder glass beads imitating coral, blue beads were also highly valued. "Keta awuazi beads", originating from Nigeria or possibly Togo, were made in horizontal molds and mold marks are often evident along their sides. Keta awuazi beads are cylindrical in shape. Manufacture ceased during the 1940s. Krobo bead makers produced similar blue powder glass beads, using glass derived from cold cream jars to achieve the blue colouration. Mauritanian Kiffa beads are also manufactured through the wet core technique. Glass, which is finely crushed to a powder, is mixed with a binder such as saliva or gum arabic diluted in water. Decorations are made