Auto-Gazo Gasoline, 1930

Ilustração, No. 109, July 1 1930 - back cover, originally uploaded by Gatochy.

Scanned from Portuguese magazine Ilustração, No. 109, July 1 1930. Click image for 652 x 1000 size.

"To avoid detonation experience advises using Auto-Gazo anti-detonation gasoline

Vacuum Oil Company, makers of Gargoyle Mobiloil Motor Oils."