Box-folder 68:46

Scope and Contents From the Sub-Series: Contains a modest amount of material relating to Tombaugh's work at Lowell Observatory for the Stellar Proper Motion Study and the Near Earth Satellite Search in the 1950s. The satellite search files contain administrative correspondence, reports, and contract proposals; additional satellite search documentation, including search records, is found in the White Sands Proving Ground subseries. Arranged chronologically by project and then alphabetically by folder title.