ЮЖНАЯ АФРИКА - YouTube- южная африка s mfrs ,Sign in to like videos, comment, and subscribe. Sign in. Watch Queue QueueProduction sequences of ostrich eggshell beads and ...Beck devised a system to describe any type of bead based on its form, perforation, color, material and decoration. With specific reference to OES beads, Plug defined nine production stages, including broken ones, outlining the steps associated with bead preparation. For the purpose of this analysis, we expanded Plug's system, incorporating a total of 12 forms into a sequence that describes the ...