Help id'ing an antique Squash Blossom hallmark

[scantar]

I've recently come into a few Native American pieces - 2 necklaces and 1 belt buckle. One of the necklaces is a Squash Blossom circa 1960 and signed "JTS" which I've found could be Juan T Singer, or a variation of Tommy Singer's hallmarks.

The other one is proving to be more difficult. This one is vintage 1920 and is signed with a scratched, rather than stamped, "XZZN." Above that is what appears to be a pin hammered character or characterization. If anyone knows this artist and can help I.D. him/her I'd be most grateful...Thanks!


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