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108 THE MARINE REVIEW July, 1918 CONCRETE and WOODEN Barges Steamships Tugs Designing Building Repairing FEDERAL General Office--220 Majestic Bldg., DETROIT, MICH. Yard Office—WYANDOTTE, MICH. Route No. 2 Geo Oldham & Son Co THE EVERLASTING VALVE Manufacturers of F or Blow Off Service PNEUMATIC TOOLS | | fe scons vier dona For Watercolumns peda” Geplcch bey Frankford, Philadelphia, Pa. ts | _ ice or money back. 7 Always tight—no repairing for ff — will send on free Chipping years. Straightthroughblow. f# trial. Write for P Has rotating disc which makes JM = booklet and full and > it self-grinding. So constructed [Ff information. Calking : yy that it syphons itself clean. Hammers Riveters and Holder-Ons Jam Riveters All sizes and capacities for the shipyard. Complete line of pneumatic tools of merit FOR SHIPBUILDING SCULLY STEEL & IRON CO. TOOLS SENT ON APPROVAL Chicago New York STRATFORD OAKUM QUALITY GUARANTEED JeRoSEY. CITY and: EVERY WHERE GEO. STRATFORD OAKUM CO, 165 Cornelison Ave., Jersey City, U.S. A. Please mention THE Marine Review when writing to Advertisers