Otis T. Mason. 1891. “Scrapers. Plate LXXI. "Aboriginal skin dressing : a study based on material in the U.S. National Museum." Annual Report of Board of Regents of Smithsonian…for the Year Ending June 30, 1889..” Special Collections, USDA National Agricultural Library. Accessed April 1, 2023, https://www.nal.usda.gov/exhibits/speccoll/items/show/8823.