This modest machine is a 1900 Locomobile, rated at a mere 3.5 hp. However, one should not dismiss the car out of hand based on that rating. The power-to-weight ratio made these scrappy. F.O. Stanley drove a similar car to the top of Mt. Washington in 1899.
Steam cars generally love hill climbing, but descending them is another matter. Look closely for evidence of brakes on this car, and all you will find (barely) is a band at the center of the rear axle. However, with steam one has the option of descending with the engine in reverse, with the drip valve open, so the engine acts as a compression brake vented to atmosphere.
This car has a side tiller, and a mirror near the driver’s foot, which allowed him to look at the vertical water glass beneath the hand throttle, to check the water level. Photo courtesy of Bob Swanson.