OIL! OIL!! OIL !!! FIRST PREMIUM PARIS 1867 TWO PRIZE MEDALS AWARDED PEASE'S IMPROVED OILS! Lu BOOKS IMPORTANT TO OWNERS OF Steam Boilers. CELEBRATED DOUBLE SEATED LOCK SAFETY VALVE. This Valve is adopted and we commended by the U. S. Govern ment and by Inspectors-in-Chief and Deputies of several States as fining all the requirements of the laws in relation to 'Steam Boilers and as being superior to any oth er. It costs the same as the single disc valve and has nearly double the capacity therefore it is much cheaper. Endorsed by the highest engineering talent of the country. JOHN ASHCROFT 50 & 52 John St. New York PIATINUM SUB-MARINE ARMOR. ANDREw J. .1014h as null, scientific american, 1868-10-21
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