The Union Automobile Company was based in Auburn, Indiana, and produced a four-cylinder automobile that was essentially a variant of the Auburn car. The company was headed by John Zimmerman, who had previously built cars…
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![Zimmerman [2]](/img/brands/z/united-states-zimmerman-2_001.jpg?w=720&h=405)
![Matrix [2]](/img/models/c/matrix-2-cl-3.jpg?w=720&h=405)
