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April, 1910 TAE Marine REVIEW 165 Hutchison Marine Tachometer r pUSTRIAL ee Peas ak Oe kas 4 Ld Engine Room Type Indicator Saves Coal--Prevents Accident Accurately indicates at any number of places aboard ship, the: Direction and Rate of Rotation of the Screws No Commutators, Brushes or Contacts to clean or renew No Batteries to charge or replace - No Pipes to leak or become stopped up No Pumps to Pack or repair No Shafts to break | No Attention Required Steady Pointer Simple, Durable Continued Accuracy Guaranteed The . Industrial Instrument Company MARINE DEPARTMENT 50 Church St. New York FOXBORO BOSTON CHICAGO NEW YORK SAN FRANCISCO