Please note: If you are a novas collector or have a penchant for 20th century phenolic plastic jewelry this passion can be addictive.  Therefore, it’s important that you familiarize yourself with the various names and terms that are given to phenolic plastics like: Bakelite, Celluloid, and Cellulose acetate just to name a few. All plastics, synthetic or natural, can be referred to as a polymer.   Through research and asking questions we gain knowledge to hopefully make appropriate choice(s) prior to making a purchase.  I wish you all the best in your search for vintage plastic jewelry.  And remember, it’s addictive. Happy Hunting!