![Postage stamp from East Germany (DDR) in the Five-year Plan series issued in 1957 Stock Photo - Alamy Postage stamp from East Germany (DDR) in the Five-year Plan series issued in 1957 Stock Photo - Alamy](https://c8.alamy.com/comp/T43T24/postage-stamp-from-east-germany-ddr-in-the-five-year-plan-series-issued-in-1957-T43T24.jpg)
Postage stamp from East Germany (DDR) in the Five-year Plan series issued in 1957 Stock Photo - Alamy
![File:DDR, Dienstmarke, 20 Pfennig, Zirkel rechts, postfrisch, Hintergrund Striche.jpg - Wikimedia Commons File:DDR, Dienstmarke, 20 Pfennig, Zirkel rechts, postfrisch, Hintergrund Striche.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/b/b8/DDR%2C_Dienstmarke%2C_20_Pfennig%2C_Zirkel_rechts%2C_postfrisch%2C_Hintergrund_Striche.jpg)
File:DDR, Dienstmarke, 20 Pfennig, Zirkel rechts, postfrisch, Hintergrund Striche.jpg - Wikimedia Commons
Briefmarke DDR Dienstmarke, 20 Pfennig, Zirkelbogen nach rechts in Nordrhein-Westfalen - Rödinghausen | eBay Kleinanzeigen
![4 x 20 Pfennig, ETS Mi.793 DDR, 4er Block o.G. -Gneisenau- mit Ersttagsstempel, 20 Pfennig 1960 First Day stamp | MA-Shops 4 x 20 Pfennig, ETS Mi.793 DDR, 4er Block o.G. -Gneisenau- mit Ersttagsstempel, 20 Pfennig 1960 First Day stamp | MA-Shops](https://img.ma-shops.com/antikksm/pic/8057_mi.793_ddr_4er_block_o.g._-gnei_880110844.jpg)