James Leffel & Company

• Illustrated Catalogue. Jas. Leffel's American Double Turbine Water Wheel, Manufactured by Leffel & Myers, at the Oregon Iron Works, Portland, Oregon
• Illustrated Hand Book of James Leffel's Improved Double Turbine Water Wheel for 1885 and 1886. For Particulars, Apply to James Leffel & Co., Manufacturers, Springfield, Ohio, and .. New York City