Home / HISTORICAL WATER POWER ENGINEERING. / Turbine Water Wheel and Governor History Gallery. / THE JAMES LEFFEL & COMPANY HISTORY. / THE JAMES LEFFEL & COMPANY HISTORY. / JAMES LEFFEL & COMPANY CATALOGUES. / LEFFEL'S IMPROVED DOUBLE TURBINE WATER WHEEL. /
An A. W. Woodward Company letter from 1887.
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