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A James Leffel Water Wheel blueprint number 43640, circa 1944.

W4.JPG A James Leffel Water Wheel blueprint number 43640, circa 1944.ThumbnailsA James Leffel Water Wheel blueprint number 43640, circa 1944.A James Leffel Water Wheel blueprint number 43640, circa 1944.ThumbnailsA James Leffel Water Wheel blueprint number 43640, circa 1944.A James Leffel Water Wheel blueprint number 43640, circa 1944.ThumbnailsA James Leffel Water Wheel blueprint number 43640, circa 1944.A James Leffel Water Wheel blueprint number 43640, circa 1944.ThumbnailsA James Leffel Water Wheel blueprint number 43640, circa 1944.