The E Street Complex, also known as the "Navy Hill Complex," the "Potomac Hill Complex," the "Observatory Hill Complex," and the "Pickle Factory," is the historic site of the primary headquarters facility of the Office of Strategic Services, and the first headquarters building of the Central Intelligence Agency. [1][2] It is geographically located near 23rd Street and E Street in Washington, D.C. [3] This complex was unassuming, appearing to be a mix of normal government offices and apartment buildings to nearby residents and office workers. [4][5]
*Note: The E Street Complex is not to be confused with the Old Naval Observatory. The E Street Complex occupied a portion of the original area of the Old Naval Observatory grounds, with a courtyard at its center.
^Katz, Barry M. (1989). Foreign Intelligence · Research and Analysis in the Office of Strategic Services 1942-1945. Cambridge, Mass., London: Harvard University Press.
^Harden, Victoria A.; Lyons, Michele (2018-02-27). "NIH's Early Homes". The NIH Catalyst. Retrieved 2020-09-28.