Communications 25p Stamp (1995) Hill and Penny Black
Gb qv penny black superb mint not hinged re-pro letters s w wide margins
Penny Black, Great Britain, 1840, this was the first adhesive postage stamp in history.
world postage stamps | The World's First Postage Stamp
What is a Penny Black stamp? 7 of the world's most valuable stamps - and the stories behind them
What is a Penny Black stamp? Seven of the world's most valuable postage stamps - and the stories behind them.
List of Valuable Stamps for Collectors
Rare Stamps List
Many people do not realise that Ireland issued the world's first postage stamp. As part of the United Kingdom of Great Britain & Ireland, the famous penny black stamp was issued in Ireland as well as test of the Kingdom.