JM Mark on Zuni Necklace

[chicfarmer]

@islandmomma the other thread on same topic:

Help w/ Zuni Style Inlay Necklace

Hi there everyone! New to the forum as I’m adding more Indigenous jewelry to my collection and hoping to make better informed purchases. I’m looking to purchase this Zuni necklace but wondering if anyone can help ID the maker before I do. I have found similar pieces and pieces similarly marked, but no actual name. Also curious in potential value as the seller is asking a fair amount for it and I want to be sure of authenticity and real market value before spending too much. Thanks so much in ad…