postal collection with a lot of dust on the surfaces
Collection box from 2001 anthrax attacks

Only a month after the nation suffered the 9/11 attacks in 2001 it faced a new danger in the form of anthrax-laced letters mailed to members of Congress and the national media. Those letters were deposited in this Princeton, New Jersey, collection box. Visitors will notice that the box retains a dusty coating resulting from the decontamination process.

Courtesy Smithsonian’s National Postal Museum