The Esterline-Angus Company, partly owned by D.J. Angus, was an early pioneer in engineering and manufacturing of electrical instruments. Angus invented a number of continuous-recording instruments and filled orders for the U.S. government and military during World War II. One such invention was the Recording Milliammeter, used by the research team of the Manhattan Project. In Chicago, Illinois on December 2, 1942 one of these devices was used to measure the first sustained, controlled nuclear reaction.
Superb condition. Well cared for by an electronic engineer. pages are clean and crisp. Looks like it could have been printed recently not 60 years ago.
Some light wear to cover.