cover Delhi: 1825 entire to Allahabad showing, on reverse, fine oval-framed "DELHI/Pt Pd" (HG 1) in red and the earliest recorded date in this colour

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cover Delhi: 1825 entire to Allahabad showing, on reverse, fine oval-framed "DELHI/P^t P^d" (HG 1) in red and the earliest recorded date in this colour