6 Pfg 5. anniversary the Seizure of power along with three others in properly franked mixed franking on international letter from "Sovereign forests (Spree) 25. 4. 36" to Turkey, with different note and postmarks again return to Germany, there to the determine sender official opened, reverse amongst other things on route passing cancellation from Istanbul and two appropriate back closure brands the Empire postal service direction Frankfurt (or), complete letter contents