Trying to find out more on two old pins

I found these two apparently Zuni pins at an antique store so I am hoping to find some clues as to who the artists were who made them. The Knifewing is 2 3/8in across and has kkm or kkw scratched lightly on the back (not electropencil), and the Rainbowman is 2 3/4in high with no marks. I have no idea how old they are or anything. Any ideas? Am I right to assume they are Zuni?

<img src=/uploads/db1846/original/1X/fd673814d61b887abfef2c6d49007df47ac10950.jpg">

These are great, Zuni circa 1960s. The Knifewing is interesting, I don’t know if I have ever seen a wire border like that. Both look very well made. The etching on the back is just the cost, three letters most likely three numbers, it would have been a couple years back something like this was less than $10. Thanks for sharing.