At the 31 January 1924 auction of the Mitchell land and buildings with 500,000-square-foot (46,000 m2) of floor space, Charles Nash offered the winning bid of $405,000.

[1] The Ajax was built using machinery moved from Nash's other acquisition, the LaFayette Motors Company of Milwaukee, and installed in the Racine plant.

[4] The Ajax came standard with a 170 cu in (2.8 L) L-head Nash straight-six engine with a seven main bearing crankshaft, force-feed lubrication system, three-speed transmission, four-wheel brakes (at that time unusual for a car of its price), steel disc wheels, as well as mohair velvet upholstery and an electric clock.

[6][7] Despite receiving good reviews from the automotive press and the general public, the Ajax brand was discontinued in 1926 after over 22,000 models were sold.

Likewise, changeover kits were sent to dealers to retrofit all unsold cars by removing the Ajax badges such as those found on the hubcaps.