This Mexican silver pectoral is hallmarked 940, MEXICO, TAXCO with a conjoined MS and is a noted Maestro in Bille Hougart's book "THE LITTLE BOOK OF MEXICAN SILVER TRADE AND HALLMARKS." The length is approximately 17.5in. wearable and the weight is 75 grams heavy. The drop measures 4.75 across with 2.75in. tall. One of the pictures pairs the necklace up with the Valentin Vidauretta earrings and bracelet also listed on my site and sold separately. This pectoral displays a tasteful size with superb condition, just LOOK AT THAT NECKLACE!