Early 1950s Educational Material by Cadbury, Bourneville. It was produced by the Schools Dept at Cadbury Bros. Ltd as an education Study to show how chocolate is made. The specimens of Cocoa Mass, Cocoa Butter & the Chocolate Chunks are model specimens, the others appear to be the real thing. Also included with the box of specimens are some notes and pictures and a beautiful life-size model of a Gold Coast Cocoa Pod. A great collection that taught me a thing or two about chocolate and had me munching on a Mars Bar shortly after.