<P> 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 a profile of Queen Victoria . </P>
<P> 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 a profile of Queen Victoria . </P>
what is the oldest stamp in the world
what is the oldest stamp in the world
The Penny Black
The Penny Black