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Engine Generating Sere... ARE MORE ECONOMICAL -AND MORE RELIABLE 24 Hour Full Load Continuous Operation for Full Seasons of 6 to 9 Months Without a Shutdown Is Not Unusual eae after season they are used with practically no attention and maintenance. This inherent reliability of engine-driven units has been brought to its maximum in Engberg because every part of the entire machine has been constantly improved and is the result of forty years marine specialization. Operators on river, lake and ocean who are materially reducing operating expense consistently install Engberg. They know from actual operating results that these machines will cut their costs. Bulletin No. 1901 which fully describes and illustrates the many valuable features will gladly be sent on request and without obligation. TROY ENGINE & MACHINE COMPANY 2241 Railroad Avenue » Troy, Pennsylvania Manufacturers of VERTICAL AND HORIZONTAL STEAM ENGINES » GENERATING SETS GENERATORS » SWITCHBOARDS TROY - ENGBERG MARINE GENERATING SETS AND ENGINES Pay for themselves by low cost dependable operation MARINE REVIEW—January, 1931 81