It Came from the Filing Cabinet

Ultra-Rare Copy of the U.S. Constitution, Found in a Filing Cabinet, Heads to Auction

According to the auction house, the document is one of eight surviving signed copies of the proposed Constitution that were went to each of the 13 original states for ratification. It is also the only one currently held in private hands; the other seven are publicly owned. The last time such a document went up for sale was in 1891, when one sold for $400, or $13,837.19 when adjusted for inflation.