1934, 4 air mail letters with high-value frankings, including Michel 190 / 91 x, 233 / 34 x, , as well 2 time Swissair Balkan flights (SLK 34.3 C) always with additional cancellation "take-off. . . Shifted" "at the 28. June 1934. . . To Pfullendorf (forced landing) ", airmail cover to Dakar and air mail letter to Zagreb