The first ten pre-series vehicles, model Volvo XC78, were designed and assembled in Stockholm at AB Galco under the supervision of Gustav Larson, at that time still having his other work at AB Galco to attend to. A "design-office", often called "Volvo's first design-office", was established in one room of Larson's private apartment at Rådmansgatan 59 in Stockholm. The design work started in the autumn of 1924 and a number of engineers were involved, among them engineer Jan G. Smith, that had returned from America in 1924, and later engineer Henry Westerberg.
The initial ten pre-series vehicles, model Volvo XC78, were designed and assembled in Stockholm at AB Galco under the direction of Gustav Larson, who was still handling other tasks at AB Galco at that time. A "design-office", often referred to as "Volvo's first design-office," was set up in one room of Larson's private residence at Rådmansgatan 59 in Stockholm. The design work began in the autumn of 1924 and involved a number of engineers, including engineer Jan G. Smith, who had returned from America in 1924, and later engineer Henry Westerberg.