This is a rare and valuable item for stamp collectors. The US 1999 33c SN 3189 Pane of 15 MNH *Celebrate the Century 70's * SEALED features the 1970s theme and has a face value of $4.95. The denomination and year of issue are 33 Cent and 1999 respectively, and it was produced in the United States. The quality is described as "Please See Pictures" and the grade is "Gem," making it an excellent addition to any collection. The item has not been certified, but is in mint, never hinged condition.