Makeba – Kombinator slide rule pencil 1950 Germany

This tool is an interesting integration of a working slide rule on a pencil. It was made in Germany by Makeba somewhere around the 1950’s and is called the Kombinator. The name is signed on the pen as shown in one of the pictures. There are 2 different slide rules where from both one half slides and they share a cursor. It is fully functioning but has clear signs of use and age. There is a small piece missing from where the tip screws in and a very small part from the plastic cursor as well. There is still a pencil inside. The price is adjusted accordingly. It measures about 17 cm or 6 3/4 inches.