Source: Annuaire Statistique De La France, Retrospectif Edition, 1961
This NBER data series a08148 appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: a08148
Release: NBER Macrohistory Database
National Bureau of Economic Research, Average Daily Earnings, Coal Miners for France [A08148FRA303NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/A08148FRA303NNBR/, August 28, 2015.