This was my brother's slide rule from his high school years in the early-60s. If you ever met my brother, you would understand why this slide rule is in such great condition. His initials are printed neatly into one finger tab, and there are some slight smudges (that appear to be “finger oil”) that show up after all these years. There is no warping and the slide works fine. The plastic case has what looks to be the beginnings of a crack along one edge. However, the yellow box shows signs of age.

Includes slide rule, case, manual © 1960, and original box.

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