the color or stripe would not determine if these are aSpeo method beads, they appear to be, an end shot would also be helpful

Thanks for the input, here are closer views of some of the individual beads.

Hi AFranck, these look as if they were made using the a speo technique, but I'm not an old hand like some, so take it for what it's worth. I'm including a link to a very informative thread concerning a speo production, hope you find it helpful!