The Gearless Motor Corp. was based in Pittsburgh, Pennsylvania, and was one of several manufacturers to introduce a steam-powered car in the years immediately following World War I. The company's president, Duncan MacDonald, simultaneously ran…
🔒
Subscribe for Full Access
Brands and models — Full galleries and interactive map
Exotic car catalog — Full brand details and model specs
Documentation archive — Full scans, plus PDF and ZIP downloads
![Gearless [2] photo 1](/img/brands/g/united-states-gearless-2.jpg)
![MacDonald [2]](/img/brands/m/united-states-macdonald-2_001.jpg?w=720&h=405)
![Stearns [2]; Stearns-Knight](/img/brands/s/united-states-stearns-2-stearns-knight.jpg?w=720&h=405)
