The Mysterious Disappearance Of The Russian Crown Jewels

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After the 1917 revolution, Russia's new rulers debated what to do with the crown jewels. This 1925 photo (above) shows the collection. However, a 1922 album at the U.S. Geological Survey includes photos of four items that are missing from the 1925 photo.
Researchers learned the fate of one of the pieces, a sapphire brooch. It was sold at auction in London in 1927. But they have no idea of what happened to the three other pieces, a necklace, a diadem and a bracelet.