A really amazing find to stumble upon. I have the same necklace in red and olive green and it has always been a favorite due to its modern design.
The Patent Number on the 18" green enameled chain clasp was applied for in 1965. Pendant tests positive for Bakelite.
This navy blue and green Bakelite pendant is a very large piece measuring 2" tall by 1.5" at its widest point and nearly 1/2" thick!
This necklace was most likely constructed in the sixties using old stock Bakelite blanks. This is seen in jewelry design from the fifties through the early seventies, after the production of Bakelite had ceased.
When I found these they were still in their original baggies and seemed to have been stored that way for the majority of time since their production.
A very unique piece.
Very limited stock.