3 Vintage Glass Bead Multi Strand Necklaces marked Japan

There are 3 necklaces: there is one red coral/orangish color, one apple green and a milky very light yellow color. 6 strands on each necklace. The metal finding that connects the strands to the bar have metal corrosion. The hook clasps are marked Japan. Length can be worn from approx. 15 1/2 to 18 inches.