vintage long strand of green & blue beads Beaded Necklace costume jewelry

vintage necklace
color: green & blue

long strand of plastic beads
green beads that gradually increase in size
larger beads in center of necklace
beads vary slightly in color, shape & texture
larger beads have small translucent green beads in between
smaller beads around the neck area have translucent blue seed beads in between
NO clasp....slips over head
has a 2.5" long extender chain....maybe there used to be a clasp of some sort???

drop: 29"
excellent condition