Series Is Presented Here As Two Variables--(1)--Original Data, 1920-1948 (2)--Original Data, 1947-1960. Source: National Industrial Conference Board, For June 1920-June 1936 Data:"Wages, Hours, And Employment In The United States, 1914-1936", Nicb Study No. 229, 1936; For July 1936-December 1937 Data: Supplement To Nicb Service Letter, June 1938; For 1937-1938 Data: Nicb Economic Record, March,28, 1940; For 1939-1944: Table Furnished By Nicb; For 1945-1948: Nicb Management Record.
This NBER data series m08211a appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08211a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Average Hourly Earnings, Electrical Manufacturing for United States [M0811AUSM259NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0811AUSM259NNBR/, June 3, 2015.