The stamps represent a collecting field in their own right for some philatelists due to the colour variations and different printers.

The 37p stamp represents second class, second weight postage, and the colour changed from lime green to olive green.

The 72p (red) stamp represents 2nd weight airmail postage to the rest of the world.

For some, the stamps represent a valuable tool of affection.

Two other stamps, both on the tenth anniversary of the coup, represent extremes of reaction to the event.

The stamps represented new taxes that the United States levied to pay for the war.

This was the first time that a stamp represented a naked women.

Mali's stamp represented local issues include economic activities, flora and fauna, traditions.

Each stamp represents a portrait of a famous German woman.

Flags, stamps and coins all represent the Crown in different ways, while symbols such as the Crown Jewels exert a powerful fascination.