Series Is Presented Here As Four Variables--(1)-- Original Data, 1906-1930 (2)--Original Data, 1923-1948 (3)-- Original Data, 1947-1954 (4)--Original Data, 1954-1956. Prices Are Called Mine Run, Spot Composite Price, F.O.B. City Until 1929. Thereafter Called Mine Run, Composite Price. Bituminous Coal On Tracks, Destination, Per Net Ton (Composite Price). Mine Run Begins 1930. No Quotations After February, 1948 Because Of Insufficient Data; A New Quotation Was Substituted In March, 1948 Which In Turn Was Replaced By Numerous Percentages. Source: Bls Bulletins, Nos. 473, 493, 521, 543, 572, And Monthly Issues Of Wholesale Prices. Data For 1923-1925 Direct By Letter From Bls.
This NBER data series m04190b appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.
NBER Indicator: m04190b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Wholesale Price of Bituminous Coal, Mines for United States [M0490BUSM294NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0490BUSM294NNBR, February 7, 2016.