Release: NBER Macrohistory Database
Source: Superintendent, Pittsburgh, Bur. Of Build. Insp., Dept. Of Public Safety (By Correspondence).
This NBER data series a02065 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html.
NBER Indicator: a02065
National Bureau of Economic Research, Value of Permits for Additions for Pittsburgh, PA [A02065US38300A550NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/A02065US38300A550NNBR, June 26, 2017.