Series Is Presented Here As Two Varibles--(1)--Original Data, 1938-1955 (2)--Original Data, 1948-1969. Revised Estimates For Retail Trade Inventories Were Introduced In January 1946. This Variable Can Be Extended Through May 1957 (The End Of The"Old" Estimates For Wholesale Trade Inventories), But This Overlap Is Considered Sufficient. Source: Derived By Adding Series (Total Manufacturers' Inventories), (Retail Trade Inventories, All Stores), And (Wholesale Inventories, Total Trade); See These Series For Sources.
This NBER data series m05123a appears on the NBER website in Chapter 5 at http://www.nber.org/databases/macrohistory/contents/chapter05.html.
NBER Indicator: m05123a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Manufacturing and Trade Inventories, Total for United States [M0523AUSM244NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0523AUSM244NNBR, May 30, 2016.