Vintage Sterling Silver Bracelets and Pendant

Selling a set of bracelets and matching pin (that can also be worn as a pendant) from Mexico. The etchings on them lead me to believe that all pieces are 925 sterling silver, but because I can’t be 100% sure without testing (they are vintage so markings are inconsistent), I’m pricing low and as a set. They were my husband’s grandmother’s, so I don’t know their history. Just that she bought them in Mexico a looooong time ago, haha The black stone in the pendant is carved to resemble a face. Which is very difficult to detect on camera! I tried my best. They are a bit tarnished, but nothing that some TLC won’t fix to get them shining again like brand new.