Years of issue:
6 - Common
The Worldwide Fund for Nature (WWF) was conceived in 1961, and is the largest conservation organisation in the world, focussing their work on saving endangered species and conserving the world's most precious natural places. The reverse of this 50p design features 50 different icons to represent the variety of work which the organisation is involved with.
You might be interested in:
2017 Quarter 4 Change Checker “Scarcity Index” Released