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July, 1922 MARINE REVIEW 53 One Knot increase in Speed— was recently obtained by a cargo ship due to our analysis of her old propeller, and— Resultant new design and new propeller “IT WOULD PAY YOU TO INVESTIGATE?’’ Carload of 16'-6" diameter Bronze Propellers made by us for a large shipyard DO YOU REALIZE THAT— WE HAVE MADE PROPELLERS FOR : THE FOLLOWING CONCERNS: Bronze propellers will last the ALABAMA DRY DOCK & SHIPBUILDING CO. life of the ship, while the average AMERICAN INTERNATIONAL SHIPBLDG. CORP. ' , G CO. life of a steel or iron propeller ea BALTIMORE DRYDOCKS & SHIPBLDG. CO. f Lb ; BARBER STEAMSHIP CO. rom three to five years. BETHLEHEM SHIPBUILDING CORPORATION CANADIAN VICKERS, LTD. The blades of a bronze propeller DOWNEY SHIPBUILDING CORPORATION will not break off. MERCHANT SHIPBUILDING CORPORATION : d NATIONAL SHIPBUILDING. ‘COMPANY A Bronze propeller will not corrode. NEWPORT NEWS SHIPBLDG. & DRYDOCK CO. NEW YORK SHIPBUILDING CORPORATION i , n be NEW JERSEY DRYDOCK & SHIPBLDG. CO A thinner blade section ca b NORFOLK & WASHINGTON STEAMSHIP CO. 2 z POCAHONTAS FUEL COMPANY obtained by using Bronze. PUSEY & JONES COMPANY RED “<D*- EINE OF SEEAMSEIE STANDARD SHIPBUILDING CORPORATION BRONZE PROPELLERS CAN NOW STANDARD MOTOR CONSTRUCTION CO. BE PURCHASED AT A LOWER STANDARD OIL GO. (NEW JERSEY) PRICE -THAN:’ HERETOFORE. 4 VACCARO BROTHERS COMPANY ‘‘What more can we say?” American Manganese Bronze Company Holmesburg, Philadelphia, Pa. Cleveland: 508 Leader-News Bldg. Detroit: 7644 Woodward Ave. Pittsburgh: 906 House Bldg. Montreal: 285 Beaver Hall Hill Please mention MARINE REVIEW when writing to Advertisers