Two spiral-bound sections of a proposal entitled "Mars Atmospheric Water Detector: A Proposal for the Viking-73 Mission Orbiter Science” from the Jet Propulsion Laboratory at the California Institute of Technology in Pasadena, California: one identified as the “Technical Section,” 26 pages, 8.5 x 11, with the abstract stating its purpose is to "map the distribution of atmospheric water vapor over the planet and to determine the pressure of the atmosphere at the level where the bulk of the vapor is present," with several charts and a fold-out schematic; and the other labeled “Management Section,” six pages, 8.5 x 11, containing three sections defining a work plan, cost plan, and facilities plan. In overall fine condition.