Smaug is the primary antagonist in J. R. R. Tolkien's 1937 novel The Hobbit - he is a powerful, intelligent, malevolent and fearsome dragon who invaded the Dwarf kingdom of Erebor 150 years prior to the events described in the novel. A group of 13 Dwarves mounted a quest to take the kingdom back, aided by the wizard Gandalf (on the stamp) and the Hobbit Bilbo Baggins.
What a card! Dragons have always been among my favourite fantastic creatures, and it makes me kind of sad that they are really relentless and dangerous. Thanks so much Adrienne :)