Data Refers To Rayon Yarn: "150 Denier, First Quality, Domestic, Minimum Filament, Bright Luster, Viscose Process Skeins At New York City -- Averages Of Quotations For All Working Days In The Month." Source: Textile Economics Bureau, Inc., "Rayon Organon", Special Supplements, January 21, 1941, Pp. 24-25; January 21, 1944, P. 25; July 1944 Issue.
This NBER data series m04130 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.
NBER Indicator: m04130
Release: NBER Macrohistory Database
National Bureau of Economic Research, Wholesale Price of Rayon Yarn for New York, NY [M04130US35620M292NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M04130US35620M292NNBR/, July 31, 2015.