|Not sure if you're referring to the two beads on the left of the strand, but|
|Re: Re: Re: Interesting blog post on "Russian" trade beads in Alaska -- Divedog||Post Reply||Edit||Forum||Where am I?|
These beads tend to have manufacturing blebs and impressions, which show up as dark spots if the particular facet they're on is strongly reflecting the light. A real nuisance in daylight photos, because it makes the beads look far more rugged than they normally appear.
The marks could also be old-fashioned accession marks, which often featured a dab of white paint with inked numerals or letters.
I've emailed the woman who did the blog post, will see if she responds.