75th Anniversary of First Aerial Post Event, Airmail, Aircraft, Humber Sommer bi-Plane, Allahabad-Naini Airmail Flight, Anniversary 50 P. Commemorative – MNH Stamp

12th Plenary Assembly of International Radio Consultative Committee. Radio, Tele Communication, Globe, Television, Telephone, Antenna, Receiver, Satellite, 20 P. (Hinged/Gum washed stamp)