Yugoslavia, Airmail

,347 C,Kingdom of Yugoslavia. Airmail. Cover (minimaly creased) franked with 30 Din. value in perforation 11 1/2 : 12 1/2 sent registered by air mail from Belgrade (11.X.39) via Zemun (11.X.39) and Athens (12.X.39) to North Rhodesia - Lusaka (21.OCT.39), Kitwe (25.X.39), Salisbury (7.NOV. 39). Censored, rare destination.