By Prince Rajput
Oldest coin in the world Minted: 723 Sold: $6 million in 2011
Exist: only few pieces Sold: in millions
world's largest Coin Weight: 1 ton gold coin
credits: joyofmuseum
Exist: only 3 pieces One Sold: $700k in 1982
Weight: $100 kg Worth: $4.3 million
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Firts Dollar Coin of the US Gov. Sold in: $10 million
Exist: only 1 Piece Worth: $20 million