K2 HORSE RACING Calculator 1972 RARE $24.49 USD Sold on: 2013-May-02 Marketplace: eBay 1 Treasure 0 Trash 100% Detail: VINTAGE K2 HORSE RACING calculator - includes booklet, round slide rule and case. This plastic circular slide rule has a white base, with three concentric logarithmic scales, all numbered from 1 to 50... More Relevance Historical Items
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