The WWF stamp collection is the largest thematic collection in the world. Since 1983, some 1,750 different stamps — all produced by Groth AG of Unteraegeri (Switzerland) — have been issued in 211 countries.
Proceeds from the sale of the stamps have helped fund a range of activities — from the conservation of endangered species to helping forest and coastal-dwelling communities improve their standards of living through sustainable use of their natural resources.
Each year, up to 18 different countries have issued stamps featuring their own threatened animals. Each stamp set includes four postcards illustrated with photographs of the species, four first-day covers with sketches by well-known wildlife artists, and an illustrated text about the species written by scientists. Available in ten languages, the text describes the species’ habitats, characteristics, behaviour, relationship with humans and other animals, as well as the main threats and protective measures taken for their conservation. In addition, albums are provided for easy storage of the collection.