Scranton's The Times-Tribune reports a mail carrier delivered it 63 years late without explanation on Friday.
The large tube contained a 1950 Pennsylvania Railroad calendar addressed to James Flanagan, former general manager of The Scranton Times.
The calendar includes a holiday greeting from a railroad executive dated December 1949. Flanagan died that month.
A U.S. Postal Service spokesman says lost mail is sometimes found when a machine is dismantled or office space is renovated.
Times-Tribune publisher Bobby Lynett says he'll see if the Steamtown National Historic Site railroad museum is interested in the calendar. If not, he'll display it in the newspaper's offices.
