Foods and Food Products; Textiles and Textile Products; Leather and Leather Products; Rubber and Rubber Products; Lumber and Lumber Products; Paper and Paper Products; Printing and Publishing; Chemicals; Stone, Clay and Glass; Metals; Special Manufacturin

Industrial Profits in the United States (NBER, 1934), https://www.nber.org/books-and-chapters/industrial-profits-united-states/foods-and-food-products-textiles-and-textile-products-leather-and-leather-products-rubber-and-rubber.