Description
Interlox Master Slide Rule. Made in USA. In original packaging. Master rule MFG.Co.Inc NY. Extends 72″ long. Advertises that it measures exact measurement between walls. This is in excellent condition, appears never to have been used and has the original instructions. Very rare to find in this condition. There is a small tear in one edge of the instructions and the previous owner put two little green dot stickers on the instructions to keep them together.