This vintage Keuffel & Esser No. 4161-3 slide rule is a rare find for collectors and enthusiasts of engineering and science memorabilia. Made by one of the most reputable names in slide rules, this piece is a testament to the precision and accuracy that K&E was known for.

Crafted with a sturdy frame and high-quality materials, this slide rule is an excellent addition to any collection. It features a range of scales and functions, allowing for intricate calculations and measurements. Perfect for display or use, this slide rule is a true gem of engineering history.

Excellent condition.