![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/thumb/b/b8/DDR%2C_Dienstmarke%2C_20_Pfennig%2C_Zirkel_rechts%2C_postfrisch%2C_Hintergrund_Striche.jpg/208px-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
![Stamp: Official Stamps for Administration Post B (II and III) (Germany, Democratic Republic (DDR)(Hammer and Compass (Typography)) Mi:DD DA22xIXII,Sn:DD O22a,Yt:DD S22,Sg:DD EO206,Un:DD SE22 Stamp: Official Stamps for Administration Post B (II and III) (Germany, Democratic Republic (DDR)(Hammer and Compass (Typography)) Mi:DD DA22xIXII,Sn:DD O22a,Yt:DD S22,Sg:DD EO206,Un:DD SE22](https://i.colnect.net/f/1986/889/Official-Stamps-for-Administration-Post-B-II-and-III.jpg)
Stamp: Official Stamps for Administration Post B (II and III) (Germany, Democratic Republic (DDR)(Hammer and Compass (Typography)) Mi:DD DA22xIXII,Sn:DD O22a,Yt:DD S22,Sg:DD EO206,Un:DD SE22
DDR Dienstmarke 20pf Zirkel rechts - Identifizierung und Wertbestimmung von Briefmarken - PHILAFORUM.COM Briefmarkenforum
![Stamp Auction - DDR - Dienstmarken A (Verwaltungspost B) - Sale #43 Germany / Europe | Day 5, lot 25919 Stamp Auction - DDR - Dienstmarken A (Verwaltungspost B) - Sale #43 Germany / Europe | Day 5, lot 25919](http://pictures.auktionen-gaertner.de/auction/4524/684524-000000.jpg)