Air Mail cover 1933-35 collection of International air service and special event covers and cards including 1933 German 5pf. stationery card uprated with 25pf. and prepared for the cancelled DO-X flight from Passau to Budapest, Imperial Airways flight Budapest to India and return, 1935 (April) London to Budapest first and second day flights (and return), 1935 Ferenc Rákóczi Budapest to Istanbul flight; many interesting frankings. (25)