COLLECTIBLE: INDIA, 1911, Feb. 18, First Aerial Post, Allahabad-Naini. India 1a tied by blackish magenta "First Aerial Post, U.P. Exhibition Allahabad, 1911" fight cachet with additional strike on back on cover to Stoneygate, England, "Allahabad 18 FE 11" despatch datestamp on back, cover with toned spots, Fine and intriguing cover, strikes of this flight cachet in black are very rare, this strike is most certainly a mixture of inks between the black and the normal magenta used for the flight, we are unaware of any other similar strikes to the example offered here. With 2012 B.P.A. Certificate