Vintage Puka Shell Bracelets with coral, white, purple, and teal, set of 3

These three puka shell bracelets come from an estate collection spanning the 1930s-2000s. One has coral and white shells, the second has white shells with purple beads, and the third has white shells with blue and white beads. Clasps are silver and gold tone. Ruler and quarter in photo for size and scale.