Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Dollars per Ton, Not Seasonally Adjusted

Frequency:  Monthly

Prices Are From 15Th Of Month. Source: For 1918-1925, Furnished Directly By Bls. For 1926 On, From Bulletins Beginning With No. 473.

This NBER data series m04132 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.

NBER Indicator: m04132