Gas at 28.9 Circa 1965 by arbyreed on Flickr.
0.28¢/gallon of gas, and a free case of R/C cola?!
What a great find! Hancock Gasoline was one of two subsidiary “discount” brands under Signal Oil & Gas. These brands were mainstays on the west coast, especially in Southern California. To make a very long story short, these brands were all absorbed into what became Exxon.