The Vintage 1953 Pickett 'How to Use Slide Rules' Instruction Manual is a rare and valuable collectible for enthusiasts of slide rules and engineering. Made in the United States, this manual provides detailed instructions on how to use slide rules, offering a unique insight into mathematical and engineering practices from the mid-20th century. Perfect for collectors or individuals looking to learn about the history and functionality of slide rules, this manual is a tangible piece of nostalgic Americana.