AURORA BILLBOARDS
| SPONSOR | ADVERTISEMENT | BILLBOARD |
| AUTOLITE | BETTER POWER... BETTER ECONOMY... |  |
| BARDAHL | GUARD AGAINST MOTOR TROUBLEWITH... BARDAHL |  |
| BELL | BELL HELMETS |  |
| BORG-WARNER | FOR SAFETYS SAKE SEAT BELTS |  |
| CHAMPION | DEPENDABLE CHAMPION SPARK PLUGS THE WINNERS CHOICE |  |
| D-A | TOUGHEST ENGINE OIL IN THE WORLD |  |
| DUNLOP | DUNLOP RACING TIRES |  |
| EXIDE | START FAST START SURE |  |
| FIRESTONE | FIRESTONE |  |
| GABRIEL | GABRIEL
RACING SHOCKS |  |
| MOBIL | THE HOT ONES RUN
ON HIGH ENERGY |  |
| PERFECT CIRCLE | PERFECT CIRCLE PISTON RINGS |  |
| PHILLIPS 66 | HIGH PERFORMANCE RACING FUEL |  |
| SHELL | SHELL X-100 MOTOR OIL |  |
| WILLARD | WILLARD THE BATTERY THE PROS DEPEND ON!
|  |
| WYNNS | GUARD AGAINST MOTOR TROUBLE
WYNNS FRICTION PROOFING OIL |  |