Release: NBER Macrohistory Database
Indications Point To Calendar Year. Source: History Of Baldwin Locomortive Works, 1832-1923 P. 182.
This NBER data series a01151 appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html.
NBER Indicator: a01151
National Bureau of Economic Research, Locomotive Production, Baldwin Locomotive Works for United States [A01151USA481NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/A01151USA481NNBR, January 21, 2018.