Green, Rust and Black Cabochon Book Chain Necklace with Dangling Charms is one of the best pieces of this genre I have seen. The book chain itself has alternating cabochons of Green, Rust and Black. Hanging from the chain are matching dangling varying size charms of the same colors. Looks like it is from the 1920s or 30s, this is one of those insanely magical pieces. Delicate and still incredibly dramatic in all of it's fine detail. It measures approximately 17 inches wearable, adjustable downwards. The longest charm is 1 inch from the top of the chain. Might be European from the look of it. Gorgeous any way you look at it.