Hello, apparently these were collected about 40 years ago. Any help on what they are and any associated value would be much appreciated!!
I cannot tell about the Mexican 50 peso (coin in the bezel), but all of the others look like cast tourist fakes. You can see the casting seem along the rims.
Yes, that was my first thought as well. Those are all fakes. I can't tell if the Mexican coin is genuine, but I would assume it is. It is pretty much just worth bullion value - it has very likely been damaged by the jewelry bezel.