1. Sources

Issued in 1957 by Topps, the Planes Cards are a type of non-sports card. They show World War II planes from all over the world. There are 242 cards in total in the set; the Blue-backs and the Red-backs. The Blue-back cards can be purchased for about $5 each while the Red-backs can be purchased for about $10 each. The Planes set can be bought for about $1000.{{citation needed|date=March 2009}}

Sources

• Benjamin, Christopher et al. (1991). "The Sport Americana price guide to the non-sports cards 1930-1960". Edgewater Book Co.-Cleveland, Ohio {{ISBN|0-937424-53-6}}

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