In these canes, the spiral encircles the red center twice. Admittedly, this is fewer times than we can see in many other canes, where there are more spirals (as I said earlier).

I will try to dig-out the photos I took ten years ago, where what I am confident is a new cane was used on then-new beads. The canes are distinctive—and not just because there are "fewer spirals."

I continue to believe that the beads you are discussing were made from old stocks of canes. Some produced, perhaps, in the 1980s. Or, possibly there were rediscovered old stocks of beads, sold in the 1980s. (I would have no way to determine which scenario would be more accurate.)

I will also try to dig-out my photo of old black beads, with "new" ('80s) black beads—that demonstrates they are identical—except that the old beads have surface wear from use. JDA.