Retro Road Maps: Calso Gasoline
1950s Calso Gasoline Road Map
Standard Oil of California, or SoCal, bought a small New Jersey oil refiner and marketing company shortly after WWII and renamed it the California Oil Company. The gasoline brand became known as Calso in the northeastern US. In 1958 all Calso stations were changed over to Chevron stations.
This Maine road map is from the mid-1950s. As the back of the map states, this map was designed in a booklet format to make looking at it easier. It’s a great remnant of bygone gasoline companies.