24 Pfg Wilhelm Pieck, scarce type zYI = ordinary paper watermarked German Demokratic Republik (East Germany) posthorn vertical standing in type I (YI), used "PLESSA" (date unascertainable), manufactured small tooth holes the a raues Zahnungsbild connect (insignificant), certificate with photograph Schönherr BPP (2014), Michel 2. 000.- rarity