This is the discussion that clarifies the origin of the wonky green and blue chevrons. Because these are a bead that will continue to be shrouded in mystery and campfire stories as time passes, I personally think that anyone interested in chevron bead evolution needs to copy this information and own at least one or two of these beads as examples. Guaranteed, at ethnic and/or bead show adventures to come, you eventually will find a seller absolutely sure they are "antique".