You can tell this is an angular button just by looking at its 7-humped shadow. The style is Art Deco, a bold and distinctive stamp of 1920's vanity. The material is green Bakelite, elegantly groomed into a carved arrangement of leafy flourishes. It's only a button, but this slab of plastic packs a jungly flair that could hide a tiger and shelter a toucan. If you look close enough, you can see Josephine Baker dancing in the foliage.