Wood and glass beads long necklace vintage 60's tribal ethnic

A fantastic long beaded necklace from the 60's, no fastening will fit over the head. Consists of flat round wooden disks and square clear and black glass beads. Good condition, the wood disks appear to be hand made as they are different thicknesses. There are a few very small chips to the corners of the square beads only noticeable on very close inspection. The length of the necklace is approximately 42" long. The beads are threaded on a thick string - it is a sturdy piece but as with all vintage jewellery some care is needed as the strings can weaken over time.