Series Is Presented Here As Two Variables--(1)--Seasonally Adjusted Data, 1938-1950 (2)--Original Data, 1947-1968. Source: U.S. Bureau Of The Census, Data For 1947-1960: "Manufacturers' Shipments, Inventories And Orders: 1947-1963, Series M3-1; Data For 1961-June 1968: "Manufacturers' Shipments, Inventories, And Orders: 1961-1968, " Series M3-1.1; Data For July-September 1968: Current Industrial Reports, Series M3-1, Monthly, Same Name
This NBER data series m05120b appears on the NBER website in Chapter 5 at http://www.nber.org/databases/macrohistory/contents/chapter05.html.
NBER Indicator: m05120b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Manufacturers' Inventories, Durable Goods Industries for United States [M0520BUSM144NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0520BUSM144NNBR/, July 30, 2015.