No joke: Switzerland has minted a gold coin so small you'd need to look very closely to see Albert Einstein sticking out his tongue at you.
State-owned Swissmint said Thursday that the 2.96-millimeter (0.12-inches) gold coin is the smallest in the world.
It weighs 0.063 grams (1/500th of an ounce) and has a nominal value of 1/4 Swiss francs (USD 0.26).
Swissmint said the coin, of which just 999 have been made, will be sold for 199 francs with a special magnifying glass so owners can see the famous physicist on its face.
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