Kankanmba beads are a type of African trade beads which were popularly used and widely distributed all over the continent in the 19th century. Also referred to as â€œProsser beadsâ€, Kankanmba beads were crafted from glass and ceramic using the technology from a button-making machine invented by the two Prosser brothers of Bohemia in the 1830s. The use of this technology was prevalent well into the 1860s, with these beads being produced with a thin seam. Kankanmba beads were also used for trading purposes by the American Indians who incorporated them into their crafts. While the production of Kankanmba beads through the Prosser technique is almost defunct, bed makers in morocco have over the years been trying to revive this process with a few attractive jewelry items.