Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Cents per Pound, Not Seasonally Adjusted

Frequency:  Monthly

1914-1940 Data Were Also Checked With Bls Series Of Two Digit Figures. 1926-1938 Data Were Also Checked With The U.S. Steel Corporation, Tnec Papers, Vol.Ii, P.82. Source: Iron Age, January Review Issues, 1915, 1920, 1940, And Following Monthly Issues.

This NBER data series m04159 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.

NBER Indicator: m04159