Series Is Presented Here As Two Variables--(1)-- Original Data, 1904-1949 (2)--Original Data, 1938-1959. Source: Furnished Direct By Business Statistics Organization, Inc. (Formerly Babson Statistical Organization)
This NBER data series m04189a appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.
NBER Indicator: m04189a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Index of Wholesale Prices of Industrial Commodities for United States [M0489AUSM321NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0489AUSM321NNBR/, July 4, 2015.