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The Jeffery Quad, also known as the Nash Quad or Quad is a four-wheel drive truck that was developed and built by the Thomas B. Jeffery Company from 1913 in Kenosha, Wisconsin and after 1916 by Nash Motors, which acquired the Jeffery Company. Production of the Quad continued unchanged through 1928.

The Quad introduced numerous engineering innovations. Its design and durability proved effective in traversing the muddy, rough, and unpaved roads of the times. The Quad also became one of the most successful vehicles in World War I. The Quad was produced in large numbers by Jeffery and Nash, as well as under license by other truck makers.
https://en.wikipedia.org/wiki/Jeffery_Quad