Davidson-Cadillac armored car

The Davidson-Cadillac armored car was developed on a Cadillac chassis by Royal Page Davidson and the cadets of the Northwestern Military and Naval Academy in Highland Park, Illinois. It was the first all-around armored car developed in the United States. To convince the military that a mechanized army was the way to go, Davidson and some cadets drove the fully armoured car along with seven support cars for 34 days from the academy to the Panama-Pacific International Exposition (1915) being held in San Francisco, California. While not accepted by the military, it was used (along with other cars) by the cadets until 1927.