Generally true vintage African trade beads are made of artfully fashioned crude glass. This one may well be made of glass, too. But we really can't tell and the strands were not marked. They might just as easily be ceramic. We are also not sure of the age of these beads. But, we purchased them over 10 years ago.
The zig-zag, double dot pattern is repeated around the bead evenly - almost perfectly. Of course, these are hand made and each one will vary slightly, but they are all alike.
As you can see from the illustration, the stringing hole is larger than usual. Each bead approximately measures 7/16 in diameter and 1/2 inch long.
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