This hard to find strand of interlocking Czech glass beads is called "SNAKE" trade beads because of its similarity to the snake vertebrae. They date back from the early 1900's. These beads have been molded and show some signs of age. It is a nice blue color and is great to be used as spacers. The beads are approximately 9-10mm in diameter. Each strand is unique and may vary slightly from strand pictured.
The strand can be worn as is because it is long enough to slip over the head. You can also use these beads as spacers in your own bead creations.