A Florida voter posted in his absentee ballot in time for the recent election, all proper and above board.
The stamp on the envelope, which may or may not have been mistakenly used, is apparently worth around $200,000.
And American law says that a used postage stamp on an envelope is public property, so most likely the stamp will be auctioned off and put into the relevant county budget.
The envelope had a second stamp, dating from WWII.
Silly mistake, if mistake it be.