Notes: "The K&E Beginners Slide Rule was a simple Mannheim that was very cheap to manufacture. This one has bare wood faces with the numbers and lines stamped and filled. The 4058 was originally called the Student’s Slide Rule. It went through many versions, the earliest having white paper faces glued to the wood. A later version, and the one that is the most common, is the “4058W,” which had white painted faces with the numbers and lines printed over that, giving a very Lawrence-like quality to those rules. This model, the 4058C, is by far the most handsome of the 4058s. "
