Series Is Presented Here As Three Variables--(1)--Original Data, 1923-1930 (2)--Original Data, 1929-1949 (3)--Original, 1945-1955. Coverage Excludes Secondary Plants; Derived Through 1949 By Deducting From Published Totals On The Old Basis The Stocks Of "Refined" Lead On The Old Basis, And Adding To The Residual Figures The Stocks Of "Refined" Lead On The New Basis. Beginning In 1949, Stocks From Several Small Plants Treating Only Scrap Have Been Eliminated; Only Such Secondary Material As Is Treated In Primary Plants Is Included. Source: American Bureau Of Metal Statistics Yearbook, 1947 And Following Issues; American Metal Market, Inc., "Metal Statistics, " 1951
This NBER data series m05062c appears on the NBER website in Chapter 5 at http://www.nber.org/databases/macrohistory/contents/chapter05.html.
NBER Indicator: m05062c
Release: NBER Macrohistory Database
National Bureau of Economic Research, Lead Stocks At Smelteries and Refineries for United States [M0562CUSM601NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0562CUSM601NNBR/, July 6, 2015.