Navajo Turquoise Chunk Nugget Shell Heishi Bead Necklace Vintage Hand Strung

Beautiful vintage 1960s/1970s estate find. 5 huge natural Turquoise chunks and 20 smaller polished turquoise beads. Heishi Shell beads in between. The turquoise appears to be stabilized, as I see evidence of the stabilizer in the deeper cracks of the larger chunks. Navajo, hand strung. Excellent condition with no flaws. Measures 26½" long and has a hook and eye type clasp. Questions and offers are welcomed ☺