Mexican Modern Silver Necklace with Large Hand Pendent William Spratling

A bespoken Mexican Modern silver necklace circa 1950s from Taxco, Mexico and crafted by William Spratling (1900-1967), an American designer and entrepreneur who established his silver studio in Taxco in the 1930s and revolutionized the silver design industry in Mexico by producing high quality silverware with modern designs.
The necklace features a chain design alternate with elongated rectangular and small circular link and a box clasp. A large pendent of two open hands motif with intertwined thumbs makes the focal point. One hand is inlayed with mosaics of azure malachite. In the center of the other palm, there is a Taichi diagram showing ying and yang with the matching inlays. The ancient Chinese Taoism symbol marks the harmony of opposite forces and a universal union of movement and stillness. The pendent is a totem of new age that shows openness and peaceful embrace of the differences. The back of the pendent is branded with the WS mark used during the third period of design between 1951-1956.
The necklace has a total circumference of 16.5". The pendent measures 5.1" w x 3'h. Total weight is about 84 grams (gross).
This open hand design is illustrated on Fig2-218 on page 75 and Fig 2-321 on page 100 of the book "Spratling Silver: A field Guide".