This is one of the smaller service stations that Keystone produced. The base is 8″ by 10″. Often these sets are assumed to be incomplete because of the hole in the top of the gas pump. this is incorrect. The hole is for filling the pump with “gas”. The gas, (water), can then be pumped into the back of the car. Once the car is full a button can be pushed on the hood and the car releases its oil.
From from my private collection.