I believe anyone will find this history useful:
1910 St.Louis, Missouri
1911 - 1915 Detroit, Michigan
In 1910 WG Wagenhals was a mechanical engineer already already well known for his design of the first successful arc headlight for electric cars and for his invention of the third-rail system then in use by the New York Central Railroad. His idea now was a three-wheeled gasoline car, and he organized the Wagenhals Manufacturing Company in St. Louis for its production in late summer of 1910. A small two-cylinder 14 hp motor was placed crosswise between the two front wheels of the Wagenhals, with the single driving wheel in the rear. Transmission was planetary, final drive by single chain. Wheelbase was 80 inches, tread a standard 56, and the price with open or closed body $690. Although an occasional runabout or taxi would be produced, Wagenhals envisioned his vehicle more marketable as a light delivery car. The first two Wagenhals sold went to a tailor and a florist in Detroit, and Wagenhals himself moved there late in 1910 where he reorganized as the Wagenhals Motor Company in 1911. Sales that year were 20 cars; in 1912 he sold 40 Wagenhals, and in 1913 80. In the latter year his vehicle attracted the attention of the Parcel Post contractor for Detroit, who purchased five of them. Of the cars built in Wagenhals' factory at 668 Grand River Avenue in 1914, 25 were destined for the US Post Office, which dispatched them to a variety of cities east of the Mississippi. A $790 electric delivery car was added to the line for 1915, and the gasoline version was uprated to a four- cylinder engine. By now a smaller version was By now a smaller version was listing at $350. Precisely why the Wagenhals Motor Company moved into receivership in August of 1915 is not known. Its liabilities were indicated as $13.673.