K&E 68 1892 (4158) --- Special Desktop Edition

From the collection of Clark McCoy

This sample is a special edition of the "K-12 Prep" mounted on a heavy leatherette type base intended to be used flat on a desk. It comes in a decorative box with the same manual as the standard K-12 Prep.

Overall view of slide rule on its base.

Complete set with box.

Detail closeups