I've had these for maybe 20-25 years and I had two main sources for (non-trade) vintage beads then. A woman who gathered NOS (new old stock) from warehouses in Rhode Island, and a woman who somehow gleaned vintage Japanese and Czech glass beads, also NOS.

Mine seem a little translucent, with a clear bright finish that almost suggest an a/b finish. Like yours, more pink towards the holes, but actually white around the actual holes. Very clean straight holes.

I always thought they were Japanese, but I bow to the experts. :^)

These came in two sizes.