Vintage 1947 Keuffel & Esser K&E 4081-3 Log Log Duplex Slide Rule Case ARTWORK For Sale
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The vintage 1947 Keuffel & Esser K&E 4081-3 Log Log Duplex Slide Rule is a collectible piece of engineering history from the United States. This slide rule features intricate artwork on its case, adding a unique and artistic element to its design. With its classic design and functionality, this piece is a valuable addition to any collection of slide rules or engineering memorabilia.