TANE Sterling Mask Charm/Pendant

Vintage, sterling silver marked TANE MT-01 MEX 925. Detailed tribal mask charm/pendant. This rustic souvenir charm/pendant is about 1/2" x 1/2" x 1/8" thick, produced by Tane for company/client 'gifting'. A much finer version of a similar mask is currently listed on Tane Mexico website as Xipe Totec, over $100. Some discoloration on the back, comes off with polish, I don't want to polish too much due to the markings. UNISEX.