Iron, tin, wood, paint
Overall: 7 3/4 x 11 1/2 x 4 in. ( 19.7 x 29.2 x 10.2 cm )
Sheet iron steam pumper painted yellow; wooden boiler wrapped in copper sheet attached to small wooden apparatus; cast iron valves and axle; four stamped sheet iron wheels.
Due to ongoing research, information about this object is subject to change.