Leighton A. Wilkie, Des Plaines, Illinois, 1957.  Oversized stapled soft cover, 32 pages.  Card covers with very light soil, faint lower front corner crease; binding sound.  Interior clean and unmarked.  “The prime objective of this book is to emphasize the importance of precision measurement by today’s standards, through an understanding of the direct effect of absolute adherence to modern measurement procedures upon the economic welfare and progress of this country … and the world.” (from pg. 2)