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    National Company (NATCO) Atomic Clocks Records, 1955-1968.
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    NATCO, Inc. (National Company, Inc.), (creator).
    National Company (NATCO) Atomic Clocks Records, 1955-1968.
    Phy. Description: 
    5.5 cu. ft.: 15 boxes and 3 oversized folders.
    Digital Reference: 
    Electronic References
    Bio / His Notes: 
    Richard Timothy Daly, Jr. directed the development of the commercial clock. The papers probably include material created by him and other project personnel listed below.
    The first commerical atomic clock was invented by a team of physicists working under J. R. Zacharias at MIT after WWII. They were produced by NATCO, Inc. of Malden, Mass., from 1955-1967. The company also researched other applications for the clocks, including a collision avoidance system.
    Scope and Content: 
    Original acquisition: Blueprints, technical drawings, research reports, instruction manuals, photographs, marketing brochures documenting the production of the first commerical cesium beam frequency standard and subsequent models. Other projects and proposals, esp. Collision Avoidance system, are also documented.
    Addendum, 2012: Proposals, memoranda and reports on the technical aspects of atomic clocks, 1960s, generated by the National Company.
    Divided into 6 series: 1) National Company Inc., 1959; 2) Atomichrons, 1955-1968; 3) Components, 1955-1967; 4) Collision Avoidance System, 1962-1967; 5) Technical Memoranda and Reports, 1956-1967; 6) Reprints from MIT, 1953-1955. Chronological arrangement.
    Donated by Louis C. Lerner, Dec. 20, 1984. Purchased from Robert Reeves, Aug. 15, 1991. 2012 addendum was collected by NMAH Curator Paul Forman. It was transferred to the Archives Center in 2012.
    Finding aids: 
    Register, available in repository and linked to this record (click on "Finding Aid").
    Loc. of Assoc. Material: 
    Division of Electricity and Modern Physics, NMAH. Historical Collections, Massachusetts Institute of Technology, Cambridge, Mass.
    Cite as: 
    National Company (NATCO) Atomic Clocks Records, 1955-1968, Archives Center, National Museum of American History.
    Unrestricted research use on site, by appointment. Gloves required with unprotected photographs.
    Copyright restrictions. Contact staff for information.
    Atomic clocks
    Frequency standards -- 1950-1970
    Cold War -- 1950-1970
    Airplanes -- Collision avoidance -- 1950-1970
    Frequency standards -- 1950-1970
    Military-industrial complex -- Massachusetts -- Cambridge
    Inventions -- 1950-2000
    Patents -- 1950-1970
    United States -- Air defenses -- Military -- 1950-1970
    Clocks and watches -- 1950-1970
    Massachusetts Institute of Technology -- 1950-1970
    Form / Genre: 
    Memorandums -- 1950-2000
    Technical drawings
    Reports -- 1940-1970.
    Manuals -- 1950-1970
    Blueprints -- 20th century.
    Photographs -- 1940-1970
    Repository Loc: 
    Smithsonian Institution, National Museum of American History : Archives Center. P.O. Box 37012, Suite 1100, MRC 601, Constitution Ave., between 12th and 14th Sts., N.W., Washington, D.C. 20013-7012. Call 202-633-3270 for appointment. Fax: 202-786-2453.
    Local Number: 
    1985.0027 (NMAH Acc.)
    2012.3018 (NMAH Acc.)
    Bagnall, James (author).
    Daly, Richard Timothy, Jr. (author).
    Lerner, Louis C. (donor).
    Grant, Eugene (author).
    Mainberger, Walter (author).
    Orensberg, Arthur (author).
    George, James (author).
    Holloway, Joseph (author).
    Bovarnick, Michael (author).
    Item Information
    RepositoryCall No. 
    Archives Center at American HistoryACNMAH 0547Add Copy to MyList

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