Thanks for posting this pdf of Karlis' report. It would be a great one to revise and republish with new digital color photos of all those cards...

Here are a few of our so-called "Russian Blues" - anyone interested in these beads needs to have Picard volume 5. These bead types were possibly first made to imitate precious jewels, with their hand ground facets. Think of the labor. Most were made starting with a six-sided blown glass tube, segmented and then every additional facet added by hand, on a water-powered grinding wheel in 19th c. Bohemia.

Not only were these traded into Africa and North America, but elsewhere...the multi-color strand in the first image is of beads that were traded by the Spanish into Peru. The strand with cobalt teardrop shapes are all African traded.

The next image is of beads that were also African traded.