Lot 50981 – 1911 Allahabad-Naini first aerial flight envelope

1911 Allahabad-Naini first aerial flight envelope with 1902-11 3p strip of four, 1/2a and 1a tied by four strikes of the « FIRST AERIAL POST / 1911 / U. P. EXHIBITION ALLAHABAD » cachet in magenta, sent registered locally in Allahabad, reverse with registered label, Allahabad cds and further strike of the cachet, fine and scarce registered usage