
The 60th Anniversary of UN Generic sheet was the first United Nations personalized stamp sheet issued to pay the 80¢ international air mail rate in effect at the time. The sheet was issued on 3 March 2005 (the same date the Student sheet was issued). The 30mm x 30mm stamps are listed as Scott 880-884 and pin perforated 13.2. It is possible that these sheets were also printed by the Banknote Corporation of America using offset lithography, but that has not yet been confirmed by UNPA.
During the release of these sheets at the ASDA show in New York City, it was discovered that some contained a rather startling error - one stamp (884 "Sphere within a Sphere") in the sheet was actually denominated 37¢. This occurs twice with in each sheet and is the bottom stamp in the first row, and the 4th stamp in the second row:

Some confusion over a possible third variety of this sheet was raised when the following sheet pre-release scan was issued by UNPA and published in Vol. 29, issue #2 of the UNP Journal:
