Data Were Converted From Long Tons To Short Tons For 1890-1913 By Dividing By 1.12. Figures For 1890-1913 Taken From First Of Month. No Business From April-September, 1900 Owing To Strike. Owing To The Strike In The Anthracite Coal Regions And The Consequent Demand For Bituminous Coal, No Georges Creek Coal Could Be Obtained In The New York Market During Several Months In 1902. During Such Months The Prices Are For Other Kinds Of Bituminous Coal (No Anthracite Sales June-October). This NBER Series Was Discontinued In December, 1913. In 1914, Bulletin 181, This Series Is Given For Annual Averages As "Coal--Semi Bituminous". Source: Bls Bulletin Nos. 39 (Pp. 386-387), 45, 51, 57, 63, 69, 75, 81, 87, 93, 99, 114, And 149.
This NBER data series m04046 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.
NBER Indicator: m04046
Release: NBER Macrohistory Database
National Bureau of Economic Research, Wholesale Price of Bituminous Coal, Georges Creek, F.O.B. New York Harbor for New York, NY [M04046US35620M294NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M04046US35620M294NNBR/, October 10, 2015.