Navajo bear claw necklace with turquoise

Navajo, Maker Unknown
bear claw necklace
USA
silver, turquoise with quartz and pyrite inclusions, claws
incised maker's mark 'AC'
203.3 dwts
3 1/4"w x 25 3/4"l (approximately)

Provenance:
Property from the Collection of Governor Jim Thompson, Chicago, Illinois
Condition Report: Silver with light surface scratches typical of age, use and polishing. Some natural imperfections to the claws. Some glue residue noticeable. Two turquoise stones with cracks.