Techno-stylistic classification of the beads.

Morphological, optical, and manufacturing characteristics of each type of beads showed in Figs <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0318588#pone.0318588.g002" target="_blank">2</a> and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0318588#pone.0318588.g003" target="_blank">3</a>. Abbreviations: <b>Category:</b> Mon.: Monochrome, C.A.: <i>Cornaline d’Aleppo</i>, G.H.: Green Heart. <b>Site:</b> AL: Alinguel, TO: Toumbounto, OB: Old Buipe, FA: Farabana, TK: Tyi-kun. <b>Shape:</b> IR: irregular. <b>Colour:</b> w: white, cls: colourless, p: pink; r: red, g: green, b: blue, o: orange; y: yellow, blk: black. <b>Diaphaneity:</b> OP: opaque, TL: translucid, TR: transparent. The <b>+</b> sign in the colour and diaphaneity sections refers to different glasses in the same layer of the bead. The number of layers, colour, and diaphaneity of glasses in brackets refer to some of the beads of the same type. <b>Technique:</b> D: drawing, W: wounding, M: moulding. <b>n.d.</b>: indeterminate. (PDF)