South West Africa. (Switzerland). 1916. Envelope addressed to the Basel Misson, Switzerland bearing South Africa SG 7, 2 1/2d blue tied by Rehoboth double ring routed via Keetmanshoop with framed 'Passed by Censor' in violet and bilingual 'Opened by Censor/104' label with Basel arrival and instructional label 'XIV/Ueberwacbungstelle/Freiburg i B./Unter Kriegsrecht Geoffnet' and forwarded to Freiburg.