Vols. 3-13, 1961-71 one issue each year includes a directory issue: Purchasing directory.A review of the functions of the sometimes misunderstood and not-always- appreciated group known as the Design Checkers. ... How a joint effort by numerous companies and individuals came to fruition in publication of a manual is described in detail ... A report on how reduced-size drawings reproduced by offset and stored on open shelves for easy access resulted in a savings of $30, 000 per year at Magnavox. ... Multiple choice tests are offered along with the answers on page 42.