Explore the precision of yesteryear with this Vintage 8.25 Inch Slide Rule Ruler from 1931. Crafted during a time when manual accuracy was paramount, this ruler embodies the timeless tool design of the early 20th century. It's a testament to the era's engineering prowess and a nod to those who appreciate the tactile elegance of analog tools. Made in the United States, this unmodified piece is a collector's gem, reflecting the craftsmanship of the 1940s. Ideal for enthusiasts of vintage calculators and slide rules, it is a tangible piece of history that blends functionality with the charm of a bygone era.