Series Is Presented Here As Two Variables--(1)--Seasonally Adjusted Data, 1948-1954 (2)--Original Data, 1953-1968. In The Source, This Segment Is Called The "Value Of Shipments For Machinery And Equipment Industries." Source: U.S. Department Of Commerce, Bureau Of The Census, For 1953-1960 Data: Current Industrial Reports, "Manufacturers' Shipments, Inventories, And Orders, 1953-1963", Series M3-1, Supplement 2, Table 3; For 1961-June 1968 Data: "Manufacturers' Shipments, Inventories, And Orders, 1961-1968", Series M3-1.1; Thereafter, Data Furnished By "Current Industrial Reports" Series M3-1.1
This NBER data series m06103b appears on the NBER website in Chapter 6 at http://www.nber.org/databases/macrohistory/contents/chapter06.html.
NBER Indicator: m06103b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Manufacturers' Sales of Producers' Durable Equipment, Value for United States [M0603BUSM144NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0603BUSM144NNBR/, August 28, 2015.