Ebay auction's text: Odyssey² was the official video game of the 1982 World's Fair in Knoxville, Tennessee, and these pins prove it. The thin metal pins are white with red lettering. They show the 1982 World's Fair stylized flame logo surrounded by the words "Odyssey²" and "Official Game, 1982 World's Fair." Since the pins were worn by folding the top metal peg back over a piece of clothing, if you find one, don't be surprised if it's bent. Unbent, the pins measure approximately 2-1/4" x 1-1/4". Find-ability Very Difficult