Vintage double strand pearl and iridescent glass necklace

I accept offers! especially for more then one item! don't be afraid to make.me an offer! This vintage necklace is from the 50s/60s and has a great shine to it still. the extender on the back has some tarnish but that doesn't extend to the necklace itself. the extender appears to be added at a later date and doesn't match the rest of the necklace. unsigned.