Series Has Been Subdivided Into Three Variables: (1)-- Original Data, 1913-1932; (2)-- Original Data, 1932-1937; (3)-- Original Data, 1937-1939. Data Are The Averages Of One-Day-A-Week Quotations, Mill To Connecter, Quotations From The Manufacturer. Source: 1937 Data Are Direct From Bls; 1938-1939 Data From Bls Bulletins And "Wholesale Prices."
This NBER data series m04151c appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.
NBER Indicator: m04151c
Release: NBER Macrohistory Database
National Bureau of Economic Research, Wholesale Price of Spun Silk Yarn, Domestic Gray for United States [M0451CUSM292NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0451CUSM292NNBR/, August 30, 2015.