Illustrated catalogue.
Subtitle: Jas. Leffel's American double turbine water wheel, manufactured by Leffel & Myers, at the Oregon Iron Works, Portland, Oregon.
Contributors: A.G. Walling & Co.
Publisher: A.G. Walling & Co., Printers
Published: 1867
Place of publication: Portland
Language: eng
Number of pages: 56
Subjects: Turbines.