I wouldn't consider the charm bracelet Native American. It has certain Native American elemental designs on it but Native American it is not. Taxco is Mexican made jewelry, it's not Native American neither. Navajo and Zuni are the two prominent Native American jewelry makers, Hopi and Pueblo should also be mentioned. Think turquoise, red coral and shell for stones. A signed piece will almost always bring more money. Not all Native American jewelry is marked for content, especially the older stuff. My tip would be to buy a good reference book and read up, not everything can be found on the internet.
I bought a pair of Barbie Monte signed Navajo small onyx and greenish turqouise earrings for $7 need to be cleaned badly. How do I price and safely clean them having all stones? I just sold that little charm bracelet today. Luck is on my side today!
Yeah, make sure what you buy is genuine Native American jewelry.... Hehe, I was thinking I'd see turquoise, and beads... Otherwise is just a silver charm bracelet, as sellable as any modern jewelry silver piece.