This vintage Kane Aero Company Dead Reckoning Computer Mark VI from 1957 comes with a beautiful leather case. Perfect for collectors of aviation memorabilia, this navigation aid was made in the United States and is in great condition. Whether you're a pilot or just a fan of aviation history, this item is sure to make a great addition to your collection. The modified item is a unique piece of technology that showcases the ingenuity of the past. Don't miss out on the opportunity to own a piece of aviation history.