OMARURU, 20 Pfennig violet-ultramarine single franking, especially attractive letter with two clear 14.1.97 strikes, OKAUKWEJO forerunner letter, reverse manuscript notation of NCO "Ernst Kaiserl. Schutztruppe Okaukwejo S.W. Afrika", to Leipzig, unusual rare letter, perfect condition, expertised Jäschke-Lantelme BPP