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BLUE CIRCLE MOTOR OIL 



A "shining" example of clean, safe lubri- 

 cation — A modern lubricant for modern 

 motors — A rugged, dependable partner 

 for efPicient engine operation. 



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Help your motors lead a clean life 



with 



BLUE CIRCLE MOTOR OIL 



The A,B,C of Lubrication 



» Added agents for protection from oxidation, corrosion, 



sludges and varnish. 

 B Bright stocks and neutrals of highest quality from our 



own refineries. 



Checked and tested for peak performance in farm 



engines. 



Gives YOU 



Assurance of trouble-free operation. 



Better, cleaner motor performance. 



Cooperative economy through your own dependable 



Farm Bureau-type cooperative. 



See your salesman who drives the 



Blue and White Truck 



c- 



A 



B- 

 C- 



BLUE CIRCLE MOTOR OIL IS SOLO EXCLUSIVELY BY 



FARM BUREAU-TYPE COOPERATIVES 



AFFILIATED WITH 



ILLINOIS FARM SUPPLY CO., CHICAGO 



Puf your equipment in the 



BLUE CIRCLE OF 



PROTECTION 



Superior performance at 



regular prices with 



BLUE CIRCLE 



• PERFORMANCE 



• PROTECTION 



• ECONOMY 



MOTOR OIL 



