Ess Eff (United States) - AllCarIndex

Ess Eff Silent Motor Company was established in 1912 in Buffalo, New York. The company produced a primitive automobile that featured a 17-horsepower, two-cylinder, two-stroke engine. Despite its name suggesting a focus on quiet operation, the vehicle likely did not fulfill this promise.

The car utilized a transmission system based on friction discs, with a final drive powered by chains, which was considered outdated technology for the time. Although the vehicle was priced at $350, making it relatively affordable, it failed to attract a significant customer base. The origins of the company's unusual name are believed to reference the initials of its founders, whose identities have not been documented in historical records.