The Series Is General Imports 1920-1933; Imports For Consumption 1934-1955. Source: Table Received From Tanners' Council Of America For 1920-1937; Monthly Summary Of Foreign Commerce Of The U.S. For 1938-1940 And 1943-1950; Survey Of Current Business, 1947 Statistical Supplement And Letter Issues, For 1941-1942 And Scattered Monthly Revisions In Later Years; Foreign Trade Report Ft110, U.S. Imports Of Merchandise For Consumption, Commodity By Country Of Origin (Monthly) For 1951 And Later Years.
This NBER data series m07046 appears on the NBER website in Chapter 7 at http://www.nber.org/databases/macrohistory/contents/chapter07.html.
NBER Indicator: m07046
Release: NBER Macrohistory Database
National Bureau of Economic Research, Raw Cattle Hides Imports for United States [M07046USM565NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M07046USM565NNBR/, December 2, 2015.