MOAB: The Mother of All Beads Silver Pearls Necklace Sterling Taxco

This is the biggest mother of all silver pearls necklace that I have ever had available to me to purchase. The last photo shows it with the typical beads and some o the large ones that I have in inventory. This is the one at the bottom. 

It was made in taxco, Mexico in the 1980s. It has a slide in locking clasp that is hallmarked. It is 37" long. The graduated beads have a diameter range 7.3 mm to 22mm. They are strung on sterlig chain. Weight: 193.2 grams.