Source: Federal Reserve Board, Data For 1919-1960: Industrial Production 1957-1959 Base. Data For 1961-1966: Industrial Production Indexes. Data For 1964-1968: Frb Release G.12.3, Business Indexes.
This NBER data series m01234b appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html.
NBER Indicator: m01234b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Index of Production of Durable Manufactures for United States [M0134BUSM350SNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0134BUSM350SNBR/, June 29, 2015.