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Definitely one for the archives, an original sketch of the Nike Air Trainer 1 by Tinker Hatfield has landed on eBay. Currently listed for a whopping $145,000, this artifact features Tinker’s notes on the model, signature and direction to fax to Mark Parker. Pretty cool. Fans of Tinker can make a play at this rare item now on eBay, with a third of all the proceeds benefiting the likes of Big Brothers Big Sisters and the National Kidney Foundation.