Necklace info?

Just the usual questions. Old or new? What tribe? What artist? What stone? Aventurine or turquoise? Value? Couldn’t photo the hallmark so did a sketch. It looks like a foot, Four toes and one toe on the left is a triangle. Thanks.

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It appears to have some age, the hallmark throws me off a little. The inlay looks like Leonard Martza, and the beads are handmade, could be a collaboration Navajo silver and Zuni lapidary work. If we had this and attributed to Leonard we would probably be around $1800 retail, thanks for sharing.

Jason, Thank you for your expert comments. Much appreciated.