20 Lost Treasures No One Can Find

Tanto Mei-Kunimitsu

The Tanto Mei-Kunimitsu was a highly valued inheritance. It is a 13th century collection that went missing after the owner died.

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The Wright Brothers’ Patent

The National Archives stores some of history’s most prized and rarest documents. It is a patent paper that describe in detail Wilbur and Orville Wright’s concept for a flying machine. It was stolen by an unknown felon without anyone noticing.

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