This slide rule was found in a cute little bookshop in rural Indiana, tucked quietly away and forgotten on a shelf. Sadly overlooked due to its size, we had to rescue it and see if we could find it a good home.


This vintage Shure Brothers Reactance Slide Rule from 1942 comes complete with its original sleeve and instructions. It was made in the United States and has been well-preserved since its manufacture date. The slide rule is a valuable piece of engineering history that can be added to any collection of science and medicine artifacts. This particular slide rule was not modified in any way and is a true reflection of its time period. It is a rare and unique item that is perfect for collectors and enthusiasts alike.