The Vintage Pickett Microline 120 Slide Rule from Mexico is a classic engineering tool that was once commonly used for advanced calculations in various fields. This slide rule, packaged neatly in a protective case, is a collectible item that represents a piece of history in the world of science and technology. A must-have for collectors or enthusiasts of vintage slide rules, this Pickett Microline 120 is a valuable addition to any engineering or mathematical memorabilia collection.