Unusual vintage Native American Turquoise heshi, chip and stone choker necklace

Really unusual in design and construction this vintage choker which is approximately 15 inches in length, has turqouise tube heshi, blue glass rocaille beads, turqouise chips and a central turqouise oval with dangles below. All handworked on thread not tiger tail so possibly 50s or 60s. The two long metal tube beads do not test as silver but the closure findings are. Please see all pics. In as found uncleaned original patina condition and shipped with a small piece of polishing cloth should you wish to clean it up. Sent boxed by royal mail large letter.

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