Issued by the Deutsche Demokratische Republik (German Democratic Republic) in 1961, this commemorative pair celebrates the 100th anniversary of the Dresden Zoo (1861–1961). The 10 Pfennig green stamp depicts a striking zebra in minimalist form, while the 20 Pfennig carmine-red issue shows two colobus monkeys rendered in a distinctive graphic style. Designed by Naumann, both stamps combine clean modernist typography with bold color contrasts typical of DDR design from the early 1960s. These zoological themes highlight East Germany’s appreciation for natural conservation and scientific institutions.