BLUE CIRCLE MOTOR OIL 



A "shining" example of clean, safe lubri- 

 cation — A modern lubricant for modern 

 motors — A rugged, dependable partner 

 for eflficient engine operation. 



• r 



Help your motors lead a clean life 



with. 



BLUE CIRCLE MOTOR OIL 



The A, B,C of Lubrication 



M Added agents for protection from oxidation, corrosion, 



sludges and varnish, 

 n Bright stocks and neutrals of highest quality from our 



own refineries. 



^ Checked and tested for peak performance in farm 



^ engines. 



GIVES YOU 

 A — Assurance of trouble-free operation. 



B — Better, cleaner motor performance. 



^ Cooperative economy through your own dependable 



Form Bureau-type cooperative. 



See your salesman who drives the 



Blue and White Truck 



BLUE CIRCLE MOTOR OIL IS SOLD EXCLUSIVELY BY 



FARM BUREAU-TYPE COOPERATIVES 



AFFILIATED WITH 



ILLINOIS FARM SUPPLY CO., CHICAGO 



Put your equipment in the 



BLUE CIRCLE OF 



PROTECTION 



Superior performance at 

 regular prices with 



BLUE CIRCLE 



• PERFORMANCE 



• PROTECTION 



• ECONOMY 



MOTOR OIL 



