If you've never heard about this, Win-a-Card Trading Cards Game is an interesting piece of card collecting history. Available on store shelves from 1968 into the 1970s, it contained a selection of specially printed yellow back baseball (including a Nolan Ryan rookie card), football and 22 Topps Hot Rods cards that were used in a spinner based game. If you have deep pockets, there is one available on eBay right now for $25,000! Click on the first picture for (fairly long) youtube video about the contents of the box. Clicking on each of the other 3 pictures leads to other internet links for more information about this game.