beautiful,rare,Vintage, Hand crafted, Taxco Silver Bracelet 4 panels with carved masks

I came across this bracelet when a cousin of mine was about to sell it as scrap silver.I told him that I would buy it off of him.At the time it seemed like a fun idea to spend a couple of hours researching,and finding out about its history.(and what ever else may pop up about it) that was almost a month ago, and still I haven't came across one like it anywhere, and have no clue on how to even identify anything about it. So with that said.I only know that its a STERLING *0925* TAXCO 4 panel bracelet with a stone carved into what appears to be a face on each panel.No idea what type of stone it may be. Worst of all is I went to a shop to have it looked at and I was offered 15 bucks for it. When I declined the offer they went straight to 100 bucks and when I told them thank you but all I would like is to know alittle about what I have.They would give me no information..So enjoy my piece and maybe one day I will be able to come back and enter everything about it that I have been desiring to know....