I have never seen these sample cards - thanks!

However - the particular rounded disk shapes in this strand, as well as the diamond and rounded shapes with a hole in the cross-direction, have always seemed to me to come from a distinctly different artistic "family". Also the phenolic resin appears to have been from a different manufacturing line, due to the typical swirls of different shades of amber seen in most of them. The beads on the sample cards appear to be very uniform in color and opacity in contrast.

Have you seen the cross-drilled types on sample cards?