He just sold his copy of the Magna Carta. $19M.

They didn't say it was, but I know it since they said the firm that bough it would put it BACK on display at the National Archives. I was there about 10-12 years ago with Mr Man and pal Broom,. The copy on display had a plaque that said it was there due to the "courtesy of Ross Perot". 

That little dude was big news then.