Series Is Presented Here As Two Variables--(1)--Original Data, 1857-1936 (2)--Original Data, 1920-1937. For 1858-1868 And 1885-1889 Figures, See British Parliamentary Papers. Source: Accounts Relating To Trade And Navigation
This NBER data series m07033a appears on the NBER website in Chapter 7 at http://www.nber.org/databases/macrohistory/contents/chapter07.html.
NBER Indicator: m07033a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Total Exports of Railway Materials for Great Britain [M0733AGBM605NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0733AGBM605NNBR/, December 1, 2015.