1936, Olympia trip, 30 C. In the block of six, airmail stamps Dutch-India, sound, with centric mounted date stamp "KISARAN, 24.7.36" and alongside flight confirmation stamp in red lilac on cover to Ottenbach at the Albis / Zurich (Switzerland). Reverse German transit postmark "Berlin central airport, 1.8.36" and Swiss arrival postmark "OTTENBACH (Zurich), 3. VIII. 36". The envelope shows at the left an approximate 1, 5 cm tear