Joe Daniels, president of the National September 11 Memorial & Museum, tells the New York Post that officials found 99 $100 bills and five 20s in the box on Tuesday night.
The box hangs on a wall at the 9/11 memorial preview site.
Memorial officials believe the money was slipped into the box sometime between 5 p.m. – when the box was last checked – and 7 p.m., when the preview site closed.
Officials believe the donation was made by a single person. They say the bills were crisp and unfolded, appearing to have been recently withdrawn from the bank.
Mystery Giver Leaves $10,000 In WTC Donation Box – Money News Story – WFSB Hartford