Tolkien Stamps

I reached for my copy of Lord of the Rings the other day, and was surprised to find this set of stamps in there. They were published by Royal Mail back in 2004, not sure if that was a Tolkien anniversary or a tie in with the films. They were probably bought by my wife, she used to have a thing about stamps. The stamps are held safely in a pouch, which folds out and gives a potted life story