This rare Winslow Slide Rule is a must-have for any collector or enthusiast of engineering and science. Made in the United States, it features advanced strength-computing capabilities and comes complete with its own case and box. Its unique design and precision make it a valuable addition to any collection or a reliable tool for any professional in the field. The Modified Item aspect adds to its rarity, making it a truly special find. Don't miss out on the opportunity to own this piece of history.

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