Hallmark RS with Curved Arrow

I just acquired a bolo tie, which I believed to have been crafted by either Robert Jr. or Robert Sr. Skeets. I have been told that the RS with a curved arrow below isn’t theirs. Please help me identify the artist and approximate year made. Thanks!

this mark is not listed here:

https://www.art-amerindien.com/hallmarks/r-american-indian-jewelry-marks.htm

only 3 marks with a curved arrow are listed in Hougarts 5th edition

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