Rare vintage yellow jasper and sterling silver necklace designed and signed circa 1950's by American & Taxco, Mexico artist William Spratling (1900-67). The stylized pendant measures 2 1/4" X 2 1/4". The heavy vintage chain measures 18" long. Necklace with pendant weighs 63 grams. The 4 hand carved channel set stones are in beautiful condition with a fine matrix that can be seen in the pictures. Hallmarked WS, William Spratling, eagle # 30. This design is pictured on p. 150 and p. 210 in WILLIAM SPRATLING AND THE MEXICAN SILVER RENAISSANCE by Penny Morrill. Also pictured on p. 181 of MEXICAN SILVER by Pack/Davis. This Spratling design in silver and jade is included in the permanent 20th Mexican silver collection at Los Angeles County Museum of Art - LACMA.