Record Group 167 includes textual records, maps, charts, motion pictures, and photographs, as follows: Records of the Office of Standard Weights and Measures, 1830-1901 (27 lin. ft.): General Records: Computations for tests, comparisons, and observations and notes made on weights and measures to determine whether they met the desired stardards, 1840-1901. Letters sent to the Treasury Department, 1830-1953. Letters received, 1845-1977. Office correspondence, 1859-1893, with registers, 1870-1881, 1883-1885. Reports on casks, ca. 1880, and on types of molasses, 1846. Financial records, 1844-1958. Reports concerning weights and measures, ca. 1870. Quarterly accounting reports, abstracts of expenditures, and vouchers, 1845-1866. Records of office personnel: Correspondence and reports of Superintendent Ferdinand R. Hassler regarding fieldwork for a survey of the U.S. coast, production and distribution of standard weights and measures, and administration, 1832-1844. Records of Jonathan H. Lane, a scientist employed by the Office of Weights and Measures, including letters from scientists and scientific papers on physics, astronomy, electricity, telegraphy, optics, and weights and measures, 1836-1878. Records of the International Standards Commission: minutes and reports, 1870-1875. General Records of the National Bureau of Standards (NBS), 1901-1972, 577 lin. ft.: Correspondence: general correspondence, 1901-1946 (210 ft.). Special subject correspondence (Blue Folder File), 1902-1952, with an index, 1901-1945 (430 ft.); Records of directors and associate directors: Office files of Director Lyman J. Briggs, 1907-1962, and Director Allen V. Astin, 1930-1969. Correspondence, reports, and other materials created, received, or accumulated by the director, 1945-1965. Office files of Associate Director Wallace Reed Brode, 1948-1958. Records of Associate Director for Chemistry Edward Wichers, 1951-1962. Files of Archibald T. McPherson. Associate Director for Engineering and Special Assistant to the Director for International Standards, 1908-1963. Files of George Auman, Assistant to the NBS Director, 1954-1969. Files of Robert D. Huntoon, Assistant to the Director, Office of Program Development and Evaluation, 1964-1968. Files of Clarence N. Coates, Assistant to the NBS Director, 1949-1967. Records of the Management and Organization Division: Records of surveys and studies conducted by the division relating to the move of NBS to Gaithersburg, MD, 1953-1966. Publications: Interim and final reports on research projects: National Bureau of Standards Reports and National Bureau of Standards Interagency Reports, 1951-1972; Bulletin of the Bureau of Standards, 1904-1918; Scientific Papers, 1919-1928; Technological Papers, 1910-1928; Journal of Research of the National Bureau of Standards, 1928-1959; Summary Technical Reports, 1946-1963; Building Materials and Structures Reports, 1938-1958. Building Research Summary Reports, 1955-1968; Non-Syndicated Reports, 1947-1954. Other records: Random sampling of completed NBS test folders, 1903-1940. Editorial Committee case files, 1960-1966. Records of the Committee on Cement of the American Society of Testing Materials, 1965. Records of Institutes, 1933-1968 (11 lin. ft.): Committee records of the Office of the Director of the Institute for Basic Standards, 1965-1968. Records of the Office of the Director of the Institute for Materials Research relating to the development of evaluation criteria, 1933-1963. Records of Divisions and Sections, 1894-1974 (206 lin. ft.): Records of the Weights and Measures Division: summary sheets and notebooks of the Mass and Scale Section containing calibrations of weights, scales, and measures made form direct observations, 1901-1945. Records of the Length Section, consisting of monthly reports, 1918-1946; test data on calibrations of decimeter and meter bars, including 153-R, 1920-1955; length measurement notebooks, 1901-1921; and computations relating to paper bags, photographic film and papers, and sieves, 1925-1932. Computations of the Thermal Expansivity Section relating to the dividing engine, 1920-1946. Records of the Electrodeposition Section, Chemical Division: Monthly, quarterly, and annual reports, 1915-1957. Records, 1910-1955, including laboratory notebooks, and records relating to patent cases. Records of the Building Research Division: General records relating to building and housing studies, 1926-1955. Sample of laboratory notebooks of the Inorganic Building Materials Section relating to tests, 1925-1926. Records of the Organic Coating Section (also known as the Organic Building Materials Section) relating to paint reference samples, federal specifications, and the testing of materials, 1935-1964. Records of the Mass-Length and Volume Section, Optical Physics Division: Mass computation record books, and records of weighings and related records, 1945-1962. Records of the Mechanics Division: Laboratory data books and project case files of the Fluid Mechanics Section, 1932-1933. Miscellaneous records of Hugh Latimer Dryden, chief of the Aerodynamics Section, 1918-1933. Activity reports of the Aeronautical Instruments Section relating to the Thin Film Research Program, 1948-1958. Records of the Organic and Fibrous Materials Division: Monthly and annual reports, case files on significant investigations, laboratory notebooks, and related records of the Textile Section, 1912-1962. Correspondence, memorandums, reports, and related records of the Paper Section, 1910-1961, and records of the successor Paper Evaluation Section relating to paper research, 1962-1974. Photographic prints: 308 images relating to paper research, including testing equipment, graphs and diagrams, and Japanese papermaking techniques, 1921-1960. Records of the Electricity Division: Reports, correspondence, and committee records, 1909-1960. Correspondence, blueprints, and laboratory notebooks relating to the Safety Elevator Interlock Testing Program, 1922-1942. Correspondence, reports, and contract case files of the Tinkertoy Program, relating to the development and production of electronic circuitry, 1951-1955. Records of the Electrical Engineering Technical Committee of the Electrosystems Division, 1940-1970. Photographs and glass slides: 180 images used as illustrations for lectures and articles, 1894-1895. Construction of the Electricity Division's first laboratory, 1912-1913. Records of the Radiometry Section, Atomic Physics Division: laboratory notebooks, 1905-1964. Records of the Materials Evaluation Division: Test folders, ledgers, laboratory notebooks, and working papers, 1930-1959. Records of the Systems Research and Development Division: Selected studies and surveys undertaken for government agencies, 1956-1965. Records of the Applied Mathematics Division: Correspondence and other records relating to electronic computers, 1947-1954. Records of the Management Planning Division: Consolidated reports concerning scientific and technical projects, 1949-1965. Records of the Inorganic Materials Division: Correspondence and working papers of the Glass Section, including reports of projects headed by Francis W. Glaze, 1946-1951. Records of the Central Radio Propagation Laboratory (CRPL) and Its Predecessors, 1875-1965 (113 lin. ft.): (housed in Denver, except as noted) Central decimal files of the Radio Section (Radio Dewey Decimal Files), 1912-1946. CRPL project and program records, 1932-1965 (bulk 1954-1965). CRPL quarterly reports, 1946-1954. CRPL monthly activity reports, 1950-1954. Records of J. Howard Dellinger, Chief of the Radio Section and CRPL, 1922-1951. Miscellaneous records of J. Howard Dellinger, 1875-1962 (in Washington area). Photographs (6,258 images in Denver): CRPL: photographic collection, arranged by office division, and including equipment, experiments, and research stations and sites, 1914-1965. Glass plate negatives (950 images in Denver): Operations of the Radio Section and of CRPL before its transfer to Boulder, 1914-1954. Records of the President's Conference on Home Building and Home Ownership, 1921-1933 (69 lin. ft.): Reports, correspondence, and memorandums concerning the work of the Committees on types of Dwellings, Blighted Areas and Slums, and City Planning and Zoning, 1931-1933. Correspondence, publications, and other records of conference committees, 1930-1933. Statistical and other records concerning a study of business cycles, 1926-1928. Correspondence, memorandums, and other records concerning the history and work of the Division of Building and Housing, 1921-1930. Administative reports, correspondence, and related records of the Division of Public Construction, 1929-1933. Records of the National Screw Thread Commission, 1918-1933 (11 lin. ft.): Minutes, reports, and correspondence, ca. 1918-1933, including the final report summarizing the history and work of the Commission, 1933. Cartographic Records (General), 1935, 1948 (2 items): Maps of United States and adjacent areas in Canada and Mexico, overprinted to show standard time zones established by the Interstate Commerce Commission, 1935, 1948. Motion Pictures (General), 1934-1978 (20 reels): Miscellaneous subjects, including energy conservation, weights and measures, dental radiography, lead poisoning, a study of children's strength, and efforts to preserve the U.S. Constitution, 1934-1978. Still Pictures (General), 1920-1959 (1,395 images): Lantern slides depicting scientific research and achievements, 1920-1950 (RS, 880 images). Experiments conducted during the tenure of Director Lyman J. Briggs, 1933-1939, including National Geographic balloon flight, 1935 (LBC, 147 images). Scientific equipment and machinery used in tests while Wallace R. Brode was Associate Director for Chemistry, 1935-1959 (WBC, 343 images). NBS building and grounds, ceremonies, and portraits of key officials, 1942 (GS, 25 images).