In the latter years of World War I, the National Bureau of Standards (NBS) implemented security measures which included a badge for each employee. Nearly 1,500 employees “were photographed for pass and identification purposes” according to the fiscal year 1919 report to the Secretary of Commerce from NBS’ Director (Annual Report of the Director, Bureau of Standards, to the Secretary of Commerce for the Fiscal Year Ended June 30, 1919, Miscellaneous Publications No. 40, p. 291). The collection contains individual identification photographs of NBS employees. Each employee is shown with a number, presumably employee number. Accompanying documentation identifies employees by number and division.
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