Series Is Presented Here As Two Variables--(1)--Original Data, 1920-1948 (2)--Original Data, 1947-1960. From 1951 On, The Figures Have Been Rounded And No Fractions Of Cents Are Available In The Source. Source: For 1947-1952, Bureau Of Labor Statistics, "Employment, Hours And Earnings, Manufacturing Division, Nondurable Goods Subdivision, Rubber Products (Sic Major Group 30), Releases Ls53-2339 (February, 1953); For 1953-1960, June, 1956 And July, 1958 Releases (Pp. 169-170A Of Summary Tables In Binder), Monthly Labor Review, "Employment And Earnings" (Advance Estimate In Mimeographed Monthly Release).
This NBER data series m08219b appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08219b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Average Hourly Earnings, Rubber Products Manufacturing for United States [M0819BUSM265NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0819BUSM265NNBR/, June 3, 2015.