Source: Compiled By NBER: Stock At Beginning Of Period + Production During Period - Stock At End Of Period.
This NBER data series q02157 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html.
NBER Indicator: q02157
Release: NBER Macrohistory Database
National Bureau of Economic Research, Linseed Oil Shipments for United States [Q02157USQ149NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/Q02157USQ149NNBR/, June 30, 2015.