S21 - World Space Week

Thanks to Helmut Joerg, we now have a good image of the World Space Week United Nations personalized sheet. He believes 6,000 sheets were printed, although UNPA Vienna told him only 4,500 sheets were printed. There are two strips of five stamps, and each stamp is denominated 0.65 euros. Even though this sheet was issued on 4 October 2007, no sheets have been delivered by UNPA Vienna or UNPA New York as of this posting - over a month later.