Grandma's emerald green, mint, and swirly white bead necklace set

This is a vintage necklace and earring set, made out out of emerald green, mint green, and swirly white plastic beads. There are three strands to the bib-style necklace, and the earrings display three beads on a clip-style earring. The shortest strand of beads is about 13", so this is almost a choker length. This belonged to my grandmother, and probably dates from the 1950s-1960s.