Cover used in the Germany East Africa / Deutsche Ostafrika (DOA) Feldpost system during WWI with Feldpoststation *2* CDS. A remarkable cover -- due to the wartime shortage of paper the sender (a doctor) reused an African local-language periodical page as a homemade cover! Bedarfserhaltung / genuinely used wartime condition as per scans. ArGe '18th Ed CV EUR750 Expertized twice lower right front by HK and Widmer. A rare piece.
