I 'd be leaning towards a 1960s date when there was a nostaglia and a re-examination of styles past. Jewelry in the 1960s could also be innovative and futuristic and plastic embodies this new ideal. So it looks like your earrings are a great example of both the old and new - remembrance of style period of the past made from the new pop plastic.
We have a number of different selling platforms on this website depending on your needs and budget. Your vintage earrings might appeal to a collector of vintage pop plastic. Advertising in the Jewelry Exchange Classifieds is less than $1 US a month.
