Aztec mask style brass/copper green bead Mexico

Vintage brass, copper and green glass bead Aztec mask style necklace. Marked Mexico. Has some weight to it. Not sure if face is glass or plastic. Shepherd hook closure. 13" drop to top of pendant which is 4 3/4" x 2 1/2". 17 1/2" total drop length. Strung on silk. Could use a restring, simple on this style. Came from a lady who was a stewardess in the mid century 1960/1970.