Just a shot in the dark and only offered as a route for further research, but check out the Case Trading Post, they are the trading arm of the Wheelwright Museum of the American Indian at Santa Fe.
As said, it's only a hunch and perhaps, hopefully another member may something more concrete.
Thank you, i did see that post, but it looked like a different one, since that was marked "alpaca" and i assume wasn't stamped USA on it. i'll check out that other reference though, thanks!