Self was a series of three cyclecar

Cyclecar

Cyclecars were small, generally inexpensive cars manufactured mainly between 1910 and the late 1920s.-General description:Cyclecars were propelled by single cylinder, V-twin or more rarely four cylinder engines, often air cooled. Sometimes these had been originally used in motorcycles and other...

s built by the brothers Per and Hugo Wiertz in Svedala

Svedala

Svedala is a locality and the seat of Svedala Municipality, Skåne County, Sweden with 9,593 inhabitants in 2005.- References :...

 in 1916, 1919 and 1922.

The first car had a single-cylinder engine, the second a four-cylinder Phänomen and the third a Harley-Davidson

Harley-Davidson

Harley-Davidson , often abbreviated H-D or Harley, is an American motorcycle manufacturer. Founded in Milwaukee, Wisconsin, during the first decade of the 20th century, it was one of two major American motorcycle manufacturers to survive the Great Depression...

 V-twin engine. The cars were basically experimental cars and were probably scrapped quite soon. However the experience came in handy when the brothers started working at AB Thulinverken

AB Thulinverken

AB Thulinverken was a company in Landskrona, Sweden, founded in 1914 as Enoch Thulins Aeroplanfabrik by the airman and aircraft technician Enoch Thulin. The company became Sweden's first aircraft manufacturer. In 1920, Thulin also started manufacturing automobiles, which continued until 1928...

 and participated in the development of the Thulin B

Thulin B

- History :In 1925 Thulinverken was contacted by the brothers Per and Hugo Weiertz who wanted them to build a car using their own blueprints. Thulinverken became interested in the project and hired the two brothers. During 1926 a prototype was constructed and tested and during 1927 the car went in...

.