Source: S. Fabricant, Capital Consumption And Adjustment (NBER), 1938, Table 29, P. 160
This NBER data series a10062 appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html.
NBER Indicator: a10062
Release: NBER Macrohistory Database
National Bureau of Economic Research, Depreciation, Business Capital for United States [A10062USA027NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/A10062USA027NNBR, February 14, 2016.