Vintage Mexican Handmade Sterling Silver "Pearls" Bench Bead Necklace Triple Strand

Vintage Mexican handmade bench beads sterling silver "Pearls" necklace. This one is a triple strand and it measures 14", 15" and 16" long. The beads are graduated in size from 6.1mm to 12.1 mm. These beads were hand made in halves and the holes were punched out by hand from the inside and then they were soldered by hand. You can see the solder lines and the shape of the holes. Beads are on chain. 

Two beads have a dent and one has a solder starting to split. Typical non-locking clasp that is well hallmarked. Weight:37 grams. These are the good early ones.