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Baltimore City Office 310 E. Lombard St. Plaza 1935 New York Office No. 1 Broadway Digby 2173 The Maryland Dry Dock Company BALTIMORE, MD. Drydocking, Shipbuilding and Ship Repairs of All Kinds The Most Modern Shops in Baltimore 2—9000 Ton Floating Drydocks Floating Machine Shop DAY and NIGHT SERVICE Plant Phones: Curtis 0500 - 0501 ~ 0502 ~ 0503 Kelvin & Wilfrid O. White Co. 112 State Street, Boston Ship Compasses Navigational Equipment Contracts a Specialty New York and Montreal Oldman-Magee Boiler Works, Inc. Boilers, Tanks, Stacks, Struc- tural Work and Castings Boiler Repairing Promptly Attended to Day or Night MARINE WORK A SPECIALTY ELECTRIC WELDING BUFFALO, N. Y. Works: 36-40 Illinois Street - Star Brass Mfg. Co. 53 Oliver Street -::- Boston, Mass. MANUFACTURERS OF Accurate ‘‘Non-corrosive’’ Pressure and Recording Gauges, Revolution Counters, Marine Clocks. Dead Weight Gage Testers. Marine, Safety and Relief Valves for all pressures. Marine Whistles and Sirens. Extra Heavy Renewable Globe, Angle and Check Valves. Star Outside Spring Steam Engine Indicators. HIGH GRADE THROUGHOUT SPECIFY AND ORDER THE BEST. Branches: CHICAGO PITTSBURGH NEW YORK For Ropeconomy DEAN BROS. MARINE PUMPS “‘The Dean of Pumps on Land and _ Sea’’ Single Style & Duplex Piston Type & Plunger Figure No. 2311 Horizontal Single Style Double Acting Outside End Packed Plung- er Trombone Pot Valve Pump For Boiler Feed & Pressure Service. ESTABLISHED /669 DEAN BROS. COMPANY MANUFACTURERS OF PUMPING MACHINERY FOR ALL PURPOSES 323 WEST TENTH ST. /NDIANAPOL/S /ND. Utmost in Rope Value MARINE REvVIEw—March, 1931 71