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12 Inch Butterfly Valve with 9 Inch Relief Outlet, D'Olier Engineering Company
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12 Inch Butterfly Valve with 9 Inch Relief Outlet, D'Olier Engineering Company
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12 Inch Butterfly Valve, D'Olier Engineering Company
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A line of white tents at a camping area
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Administrative Map of Yellowstone National Park, Wyoming-Montana-Idaho
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Administrative Map of Yellowstone National Park, Wyoming-Montana-Idaho
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Administrative Map of Yellowstone National Park, Wyoming-Montana-Idaho, Estimates for Handling Automobile Traffic
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Bachelor Officers Quarters
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Bachelor Officers Quarters, Footings
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Cement viaduct at Golden Gate
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Characteristic Curve of Francis Weir 8ft Wide, D'Olier Engineering Company
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D'Olier Engineering Co. Pipe Specials
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Death Gulch at Cache Creek
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Death Gulch near Soda Butte
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Detail of 21 1/2 Diameter Turbine Wheel for D'Olier Francis Turbine
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Detail of Bearing Bushing, and Detail of Oil Cap, D'Olier Engineering Company
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Detail of Bearing Stand, D'Olier Engineering Company
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Detail of Bed Plate for D'Olier Francis Turbine, D'Olier Engineering Company
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Detail of Case Head for D'Olier Francis Turbine, D'Olier Engineering Company
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Detail of Case for D'Olier Francis Turbine
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Detail of Double Bearing Bracket for D'Olier Francis Turbine, D'Olier Engineering Company
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Detail of Draft Tube Ring, D'Olier Engineering Company
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Detail of Gate Shaft, D'Olier Engineering Company
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Detail of Guide Vanes for D'Olier Francis Turbine
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Detail of Oil Ring, D'Olier Engineering Company
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Detail of Pedestal Bearing, D'Olier Engineering Company
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Detail of Quarter Turn for D'Olier Francis Turbine, D'Olier Engineering Company
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Diagram Showing Valve System for Control of Water Supply at Fort Yellowstone and Mammoth Hot Springs
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Double Set of Officer's Quarters at Fort Yellowstone, Wyoming, Prepared in Office of Chief Quartermaster, Department of Dakota
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Drawer 178 No. 31, Chapman Valve MFG. Co., 10 Inch Valve List No. 89
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Drawer 178 No. 53, Chapman Valve MFG. Co., 36 Inch Valve List No. 89
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First Tower Fall soldier station
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Forest Reserve Road Eastern Approach
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Forks of Firehole River, Yellowstone National Park
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Fort Yellowstone, Wyoming
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Fort Yellowstone, Wyoming, Bachelor Officer's Quarter's, Plans 152-Q, Plat Showing Extra Walls and Footings as Built
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Fort Yellowstone, Wyoming, Detail of Foundations for Turbine, Generator, and Exciter, D'Olier Engineering Company
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Fort Yellowstone, Wyoming, Detail of Machine Shop & Discharge Weir, D'Olier Engineering Company
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Fort Yellowstone, Wyoming, Detail of Plumbing, D'Olier Engineering Company
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Fort Yellowstone, Wyoming, Diagram of Plumbing, D'Olier Engineering Company
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Fort Yellowstone, Wyoming, Plat of Cemetery, Index on Attached Sheet, Office of Quarter Master
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Fort Yellowstone, Wyoming, Plat of Cemetery, Index on Attached Sheet, Office of Quarter Master
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Fort Yellowstone, Wyoming, Proposed Waterline
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Foundation Plan and Templet for Horizontal Engine and Compressors, Will P. Stevens, Consulting & Refrigerating Engineer, Los Angeles, California
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Fract'l Township No. 9 South Range No. 7 East of Principal Meridian, Montana
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Fract'l Township No. 9 South Range No. 7 East of Principal Meridian, Montana
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