How to Use a Slide Rule, Eugene* Dietzgen Co. -1942 owner's and user's manual F*S import_2021_05_15_235529 This is the 58th (1955)

This is the 58th (1955) Catalog

It sits flat

It looks like Cocobolo

Restored and Working

The spout is an “elephant trunk” style spout

How to Use a Slide Rule, Eugene* Dietzgen Co. -1942 owner's and user's manual F*S import_2021_05_15_235529 This is the 58th (1955)This is a high quality reprint of the Eugene Dietzgen Co. "How to Use a Slide Rule" manual dated 1942. The Slide Rule is an instrument for facilitating calculations and is an indispensable aid not only to the engineer and scientist with their involved problems, but also to the accountant, statistician, manufacturer, merchant, importer, teacher, student, or anyone who has calculations to solve. This is the complete Eugene Dietzgen Co. manual, note that