Typed audit report of the Brush Laboratories Company, by Nau, Taylor, and Swearingen, certified Public Accountants, dated December 31, 1927. Includes Show moreTyped audit report of the Brush Laboratories Company, by Nau, Taylor, and Swearingen, certified Public Accountants, dated December 31, 1927. Includes balance sheets, cost of research and development, distribution of development costs, surplus account, and schedule for equipment and apparatus Charles F. Brush, Sr., Papers Series 9: Brush Companies (1880s-1933) Subseries 1: The Brush Laboratories Company (1921-1933) Box 29 Folder 8 Show less