. Official proceedings . By S. E. McMASTER. Superivising Agent. Pennsylvania RailroadCo.; Captain, Corps of Engineers, U. S. Army Reserve, Altoona, Pa. Steel Car Forge Company PITTSBURGH, PENNSYLVANIA FORCINGS. Dieter Lock and Holding Nuts STANDARD SAFETY NUTCORPORATION 30 CHURCH ST. NEW YORK 99 LEWIS IRON, The Iron Superior Penn Iron & Steel Company, Greighton, Pa. SOLE SALES T. Ryerson & Son, Inc., Chicago, III. ^ ALWAYS AT YOUR SERVICE— P. T. L. iRspecton—located in the large indoatrial centers, inspectand test every step during manufacture and gvArantee excellenceof construct

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. Official proceedings . By S. E. McMASTER. Superivising Agent. Pennsylvania RailroadCo.; Captain, Corps of Engineers, U. S. Army Reserve, Altoona, Pa. Steel Car Forge Company PITTSBURGH, PENNSYLVANIA FORCINGS. Dieter Lock and Holding Nuts STANDARD SAFETY NUTCORPORATION 30 CHURCH ST. NEW YORK 99 LEWIS IRON, The Iron Superior Penn Iron & Steel Company, Greighton, Pa. SOLE SALES T. Ryerson & Son, Inc., Chicago, III. ^ ALWAYS AT YOUR SERVICE— P. T. L. iRspecton—located in the large indoatrial centers, inspectand test every step during manufacture and gvArantee excellenceof 20 and 21 Tell How It Is Done—Write For Your Copy. PITTSBURGH TESTING LABORATORY Inspection Engineers and ChemistsPITTSBURGH. PA.

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