Box-folder 79:4

Scope and Contents From the Sub-Series: Organized under two headings, design and construction and general files. Design and construction contains correspondence, plans and calculations, and descriptions of Cassegrain and Schmidt telescopes, and miscellaneous equipment. General files contains general information and reports on Cassegrain, Schmidt, Maksutov, and other types of telescopes and optics, supplies and suppliers, and related equipment. Files are arranged alphabetically under each heading.