Very Vintage Red and White Beaded necklace

This 15 inch red and white beaded necklace appears to be strung on string with a spring ring clasp. The plastic beads have no seams on the beads anywhere that I can find. That makes this necklace very vintage. It could be from the 80's all the way back to 50's. I wish I knew more about this piece but honestly I cannot remember its history. Perfect timing for valentines day ! Would have been great for Christmas. you have to make sure the clasp closes. I would add a magnetic clasp for ease and saftey.