Series Is Presented Here As 2 Variables: (1) Original Data, 1910-14; (2) Original Data, 1918-39. See V098 Source: Lloyd'S Register Shipbuilding Returns And Letter From London Office Of Lloyd'S Register Of Shipping.
This NBER data series q02098b appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html.
NBER Indicator: q02098b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Tonnage of Vessels Under Construction for United States [Q0298BUSQ561NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/Q0298BUSQ561NNBR/, August 5, 2015.