Source: See Ruth P. Mack, Consumption And Business Fluctuation, A Case Study Of The Shoe, Leather, Hide Sequence (NBER), 1956, P. 268, Series 31.
This NBER data series m06061 appears on the NBER website in Chapter 6 at http://www.nber.org/databases/macrohistory/contents/chapter06.html.
NBER Indicator: m06061
Release: NBER Macrohistory Database
National Bureau of Economic Research, Retail Sales of Shoes for United States [M06061USM144NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M06061USM144NNBR, February 9, 2016.