This vintage slide rule from K&E is a rare find for collectors and enthusiasts of engineering and science history. Made in the United States in 1947, this particular model is a true gem for those interested in slide rules and their evolution over time. The design features a duplex decitrig keufer and kesser co. logo, adding an extra layer of intrigue to this unique piece. Whether you're a collector or simply interested in the history of slide rules, this vintage K&E model is sure to impress. With its precision engineering and unique design, it's a testament to the quality and innovation of American engineering in the mid-twentieth century. Add it to your collection today and experience a piece of history. Includes slide rule, leather case and book.  All in very nice condition!