The story
George W. Marble and George P. Swift patented a friction transmission and originally planned to sell it as a stand-alone product. Marble-Swift Automobile Company was formed and built a factory in Chicago to manufacture complete cars and the new transmission.
The Marble-Swift was a friction-drive runabout with a 16-hp twin-cylinder engine. In 1905 it was enlarged to a four-cylinder 22-hp touring car with the friction transmission, selling for $1,500 (equivalent to $53,750 in 2025).
In 1905 Marble-Swift was succeeded by the Windsor Motor Car Company.
From Wikipedia’s article on Marble-Swift, shared under CC BY-SA 4.0.3