1925 cover to Nowshera with a 1a cancelled Risalpur 2 FEB 25. The cover has a superb strike of the CALCUTTA – RISALPUR DEMONSTRATION FLIGHT / CALCUTTA / 1925 violet cachet. The signature of the pilot, Fl. Lt. Graham, is at the top of the cover and ties the stamp. On the back is a Nowshera 3 FE 25 arrival cancel. Only 64 covers were flown, so rare!