This set was issued to benefit the victims of catastrophic damage to the city of Semendria.
The stamps depict Semendria fortress (MiNr. 51 and 53) and refugees (MiNr. 50 and 52). The stamps are of the same design as MiNr. 46-49, but with different colors and surcharges.
Unlike MiNr. 46-49, MiNr. 50-53 were issued in souvenir sheets — MiNr. 50-51 in Block 1, and MiNr. 52-53 in Block 2.