First day covers
Subject Source: Art & Architecture ThesaurusScope Note: Envelopes, postcards, or other postal items of reasonable size with a new stamp or stamps bearing the postally applied marking 'First Day of Issue' and indicating the date and place of first official issue.
Found in 1 Collection or Record:
Collection — Multiple Containers
Identifier: MSP 80
Scope and Contents The Clifford Blake Powers papers primarily document Powers' career with Essex Corporation and CST, Incorporated, in association with NASA. The papers also include various NASA-related publications, promotional material and memorabilia collected by Powers. The papers contain a varied assortment of artifacts, papers and publications related to Powers' employment at Essex Corporation, where he was the project manager (publications) for the First United States Microgravity Laboratory mission...
Dates: 1962 - 2003; Other: Majority of material found within 1990 - 2002