Only two copies from the first printing of the final text of the U.S. Constitution are known to be in private hands. One of them sold for a record $43.2 million last year; the second is going on the auction block next month. It went up for auction in 1894 and hasn't been up since. They think it will sell for at least $20- $30 Million dollars which would make it the highest pre-sale for any historic document. My biggest question is- where do you hang this in your house??