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Hollow Coin

1950s-1990s, KGB

Hollow coins easily concealed microfilm and microdots. They were opened by inserting a needle into a tiny hole in the front of the coin.

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Additional Objects

M-94 Cipher Device

Circa 1922-1943

Pigeon Camera

Eyeglasses with Concealed Cyanide Pills

Circa 1975-1977