Includes diagrams and materials dealing with projects for the US Naval Supply Depot in Clearfield, UT, such as a dispensary project, marine barracks project, heating studies, correspondence, specifications, concrete tanks, "The Seagull" (three 1945 issues), and more. Dated 1942 to 1945.

Maps, diagrams, blueprints, and other engineering materials dealing with various companies, including USS Lead Refinery, Inc, Combined Metals Reduction Company, Kennecott Copper Corp., Utah Power and Light Company, American Zinc, Lead, and Smelting Co., Denver Equipment Co., Climax Molybdenum Co., Great Western Engineers, Inc., Allison Steel Manufacturing Company, American Smelting and Refining Company, Link-Belt Company, M. H. Detrick Co., and others. Dated 1917 to 1973.