Good stuff. I have the same Taxco "belt" bracelet. Here is a little info. regarding the particular markings on your Taxco pieces-
Mexican silversmiths since 1979 have marked sterling silver from Mexico with two letters, a dash and two numbers. The first letter identifies the city in Mexico, and the second letter identifies the last name of the silversmith. The numbers identify the specific silversmith who uses the mark. For example, a TC-40 mark is a Taxco piece from a silversmith whose last name begins with "C" and who was the 40th silversmith to register.
As for the pendant markings, there are plenty of other pieces out there with that same makers mark.
The 2 bracelets will command a small premium over melt value if listed on Ebay. Nice silver finds for a thrift store. I don't usually find any sterling at them, except once every 6 months or so.