cover 1854 4a., First printing (Head Die I, Frame Die I), a complete ''A'' Stone sheet of twelve, cut into singles and used on entire to Aden, each stamp neatly cancelled with diamond of bars, seven stamps with four margins, the others affected by the opening of the letter. A remarkable cover and regarded as the largest surviving franking of this period indicating a letter weighing 5-6 ounces. Undoubtedly one of the most important and outstanding items of Indian philately. R.P.S. Certificate (1963)