A rare copy of the U.S. Constitution that was signed and sent to states to ratify is up for auction later this month in North Carolina.

Historical document appraiser and collector Seth Kaller spreads a broad sheet of paper across a desk. It's in good enough condition that he can handle it, carefully, with clean, bare hands. There are just a few creases and tiny discolorations,

There are just a few creases and tiny discolorations, even though it's just a few weeks shy of 237 years old. The minimum bid for the auction is $1 million.

Historical document appraiser and collector Seth Kaller spreads a broad sheet of paper across a desk. It's in good enough condition that he can handle it, caref

The minimum bid for the auction is $1 million. There is no minimum price that must be reached. This copy was printed after the Constitutional Convention approved the proposed framework of the nation's government in 1787 and it was ratified by the Congress of the ineffective first American government under the Articles of Confederation.