From the Stanley Motor Carriage Company, operating from 1902 to 1924. They went bust after their steam cars couldn’t compete with advancing internal combustion engine technology. A key development in their the demise was the electric starter, which eliminated the risk of injury from a crank start.

Photo of a 1908 car, same vintage as the ad, but this model has a covered top to keep out the rain and sun.

Six horsepower engine from a Stanley Steamer,

And the steam generator from a 1919 model,