Muscat
cover 1873 (28 Aug.) envelope to Bombay bearing ½a. tied by a fine strike of the rare "309" in diamond of bars (Donaldson Type 1A), on reverse an equally fine strike of the "MUSCAT/AUG 29/73" c.d.s. with arrival c.d.s. (5 Sep.) adjacent. A splendid exhibition item. Photo

Details
cover 1873 (28 Aug.) envelope to Bombay bearing ½a. tied by a fine strike of the rare "309" in diamond of bars (Donaldson Type 1A), on reverse an equally fine strike of the "MUSCAT/AUG 29/73" c.d.s. with arrival c.d.s. (5 Sep.) adjacent. A splendid exhibition item. Photo