This post will answer these questions: 1. What is Celluloid? 2. Who invented Celluloid - when & how? 3. Are Celluloid powder compacts and accessories valuable? 4. How can I find the value of my Celluloid collectibles? 5. Where can I find vintage & antique Celluloid powder compacts? 6. How should I store Celluloid items? 7. How can I tell if an item is made from Celluloid? 8. How do I clean Celluloid accessories?