1 द्वारा ईबुक Sir Rowland Hill
George Birkbeck Hill & Sir Rowland Hill: The Life of Sir Rowland Hill and the History of Penny Postage, Vol. I (of 2)
The Penny Black was the world's first adhesive postage stamp used in a public postal system. It was first issued in Great Britain on 1 May 1840, but was not valid for use until 6 May. It features …
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