Hammer was an early American car brand associated with the Hammer-Sommer Auto Carriage Co., founded in Detroit, Michigan, and active in the early 1900s. The company was initially formed as a partnership that produced light…
🔒
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
![Sommer [1]](/img/brands/s/united-states-sommer-1.jpg?w=720&h=405)
![Matrix [2]](/img/models/c/matrix-2-cl-3.jpg?w=720&h=405)
