German East Africa AO Overprint Issues MiNr. 25 MiNr. 26 MiNr. 27 MiNr. 28 MiNr. 29 MiNr. 30 MiNr. 31 MiNr. 32 MiNr. 33 On 15 May 1918, Belgium issued this set of overprints of Belgian Congo MiNr. 33-41 for use in Belgian occupied German East Africa. The “A.O.” overprint stands for “Afrique Orientale”. Set Date(s) 15 May 1918 Watermark(s) None Album Page(s) AO Overprint Issues MiNr. 25 MiNr. 26 MiNr. 27 MiNr. 28 MiNr. 29 MiNr. 30 MiNr. 31 MiNr. 32 MiNr. 33 On 15 May 1918, Belgium issued this set of overprints of Belgian Congo MiNr. 33-41 for use in Belgian occupied German East Africa. The “A.O.” overprint stands for “Afrique Orientale”. Set Date(s) 15 May 1918 Watermark(s) None Album Page(s)