Check the listing for details. Vintage Original JPL 1970s Folder, Viking Memo, and Fact Sheets. Condition: Used. Listed at 19.99 USD. Vintage Original JPL 1970s Folder, Viking Memo, and Fact Sheets Jet Propulsion Laboratory Folder. Cover shows the Mariner Jupiter/Saturn 1977 Spacecraft. Inside has information and images of 1958-1978 probes from Explorer 1 to SeaSat. 9-1/2"x12"Memo from the JPL Office of the Director, Bruce Murray, to all employees about the Mars Viking mission. Dated July 30, 1976. The original pictures with the memo are not included. 8-1/2" x 11"JPL Fact Sheet - Laboratory History. 8-1/2" x 11". 3 pages. Dated 2/24/77JPL Fact Sheet - Laboratory History. 8-1/2" x 11". 4 pages. Dated 9/28/77JPL Fact Sheet - IRAS Infrared Astronomy Satellite. 8-1/2" x 11". 3 pages. Dated DB--3/23/77JPL Fact Sheet - IRAS Infrared Astronomy Satellite. 8-1/2" x 11". 3 pages. Dated DB--3/23/77Interesting items for those who appreciate USA NASA JPL space exploration! These came from a JPL employee's collection in Pasadena, California. Previously-owned, as-is. Folder has tears, wear and stains. Memo has a few spots on it. Fact sheets have varying degrees of paper darkening with age. See attached pictures.