Vintage Unsigned 1960s Florenza Choker Necklace, Blue and green on dark grey

...costume jewelry Ca 1960s unsigned costume jewelry necklace - most like Florenza in look and style. It is made up of 11 linked pieces and the closure chains. The metal is a dark grey tone, the stones (glass?) in whites, blues and green are all accounted for. With a simple hook closure, it is length adjustable. Please see images for condition, there is some colour difference between the stones. Longest is ca 16-1/4 inches (41.5 cm), shortest is 13-1/4 inches (33.5 cm)