I do not know much about these wonderful egg dishes except that I am obsessed with them and purchase them whenever I can find one. I purchased this red one today at Anthropologie. These are just two examples of the many that I hoard in my house and at the shop. They are so wonderful to display different tiny treasures. I love them for earrings and jewelry especially, and the blue one below keeps some of my change organized. Jeanette especially likes them for buttons.