Six stamps will be issued by United Nations Post Office
to celebrate the Secondo World Radio Day on 13 February 2013.
The new series includes two stamps for each UN headquarters in New York (46 cents and 1.10 $) Geneva (1.40 and 1.90 CHF) and Vienna (0.70 and 1.70 €) and will show aspects of the history of UN Radio Services. The World Radio Day has been proclaimed on 13 February after the first UN Radio broadcast on that same day in 1946. Stamps will be sold in 20 units sheets.