Antique Keuffel & Esser Co. Slide Ruler In Original Leather Case. Model 4083-3. For Sale
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Antique Keuffel & Esser Co. Slide Ruler In Original Leather Case. Model 4083-3.:
$100.00
The Antique Keuffel & Esser Co. Slide Ruler in its original leather case is a vintage engineering tool that hails from the United States. This pocket-sized slide ruler, model 4083-3, was used for precise calculations in the fields of engineering and science during the mid-20th century. The Keuffel & Esser Co. was a renowned manufacturer of engineering tools, making this slide ruler a valuable collectible item for those interested in the history of scientific instruments.
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