#CB27-CB30 Hungary - Aviation, Set of 4 (MNH)
1967 Aviation, Set of 4. No. CB27, Parachutist. No. CB28, Helicopter Mi-1. No. CB29, TU-154 jet. No. CB30, Space station Luna 12; Issued to commemorate (in connection with AEROFILA 67) the 7th Congress of FISA (Fédération Internationale des Sociétés Aérophilatéliques) and the 40th Stamp Day.