Windsor
A short-lived American automobile marque produced in St. Louis by the Windsor Corporation from 1929 to 1930.
Last updated August 27, 2026
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Overview
Windsor was an American automobile marque produced by the Windsor Corporation in St. Louis, Missouri, during 1929 and 1930. It was created as a subsidiary of the Moon Motor Car Company, a St. Louis automaker whose sales had declined sharply during the late 1920s. Windsor operated from the same manufacturing facility as Moon and shared Moon's corporate officers, making it an extension of the parent company's manufacturing and distribution structure rather than an entirely independent automotive enterprise. The launch took place during a difficult period for Moon. The company had already experienced falling sales, while another Moon subsidiary, the Diana Motors Company, had recently ceased operations. Windsor was intended to provide a new commercial outlet and help revive the group's automobile business through a separate marque. The strategy did not succeed. Moon stopped marketing automobiles under the Moon name in 1929, and the Windsor company itself ended operations approximately one year later. Windsor produced only one automobile line, the Windsor White Prince. The car shared components with Moon models, reflecting the practical and financial logic of using existing engineering, parts, and production resources. The White Prince name and associated branding attempted to give the automobile a distinctive and prestigious identity within the crowded American market of the period. One of the marque's notable branding episodes involved its use of the coat of arms associated with the Prince of Wales. Windsor initially featured the emblem in advertising and on the automobile's radiator badge and hub caps. Buckingham Palace objected to the use of the royal insignia, after which the company changed the logo. The episode illustrates the brand's effort to associate its product with British aristocratic imagery, as well as the legal and reputational risks of using official or quasi-official heraldic symbols in commercial marketing. Windsor's production history was therefore brief: it appeared in 1929, operated alongside the declining Moon organization, and disappeared in 1930. Its importance in automotive history lies less in production scale than in its role as a late subsidiary marque created during the contraction of the Moon Motor Car group. Surviving references identify the Windsor White Prince as the company's sole model, with much of its technical basis shared with Moon automobiles.
History
The Windsor Corporation was established as a subsidiary of the Moon Motor Car Company and produced automobiles in St. Louis, Missouri, from 1929 to 1930. The venture emerged during a period of serious weakness for Moon. Sales of Moon automobiles had fallen sharply, and the Diana Motors Company, another subsidiary, had recently folded. A new marque offered Moon an opportunity to reuse its production infrastructure while presenting buyers with a different name and market proposition. Windsor shared Moon's manufacturing facility and had the same company officers as its parent. This arrangement indicates that the marque was closely integrated with Moon rather than operating as a separate automotive organization. Its cars also shared components with Moon models, reducing the need for wholly new engineering and tooling. The company's only known model was the Windsor White Prince. The White Prince name was accompanied by an attempt to create an aristocratic visual identity. Windsor initially used the coat of arms of the Prince of Wales in advertising and on the car's radiator emblem and hub caps. Buckingham Palace objected to that use, and Windsor subsequently altered its logo. The change removed a prominent element of the original branding but did not alter the company's short production history. The broader Moon organization continued to deteriorate. Moon stopped selling cars under the Moon name in 1929, the same year Windsor began production. The subsidiary did not provide the hoped-for recovery in sales, and the Windsor company ceased operating in 1930. Its brief existence makes it an example of a late-1920s American automobile marque created through corporate diversification, component sharing, and brand repositioning during an industry downturn. The surviving historical record identifies the Windsor White Prince as Windsor's sole automobile. No evidence in the cited material establishes production totals, detailed technical specifications, a separate executive roster, financial performance, or a continuing successor brand. Windsor is consequently best understood as a short-lived Moon-affiliated automobile marque rather than as an enduring independent manufacturer.
- 1930
Windsor company ends operations
[1]The Windsor Corporation ceases operation approximately one year after its launch.
- 1929
Windsor enters automobile production
[1]The Windsor Corporation begins producing automobiles in St. Louis as a subsidiary of Moon Motor Car.
- 1929
Moon abandons sales under the Moon name
[1]Moon Motor Car stops selling cars under its own name while its Windsor subsidiary is operating.
Products and positioning
A prestige-oriented American passenger-car marque that used shared Moon Motor Car components and distinctive royal-themed branding.
Passenger automobile · 1929
Windsor White Prince
The Windsor White Prince was the only automobile identified with the Windsor marque. It shared components with Moon models, reflecting the subsidiary's use of the parent company's engineering and manufacturing resources. The model was marketed with a prestige-oriented identity, including branding connected to the Prince of Wales. Windsor later changed the emblem and advertising treatment after Buckingham Palace objected to the use of the associated coat of arms.
Brand decisions
1929
Create Windsor as a new Moon subsidiary marqueStrategyBackground
Moon Motor Car was facing sharply declining sales, and its Diana Motors subsidiary had recently folded. The company sought another route to stimulate sales while retaining access to its existing factory, officers, and shared components.
Action taken
Moon established the Windsor Corporation as a subsidiary and used it to produce and market the Windsor White Prince from the Moon manufacturing operation in St. Louis.
Aftermath
The new marque did not reverse the group's decline. Moon stopped selling cars under its own name in 1929, and Windsor ceased operations in 1930.
- Replace the Prince of Wales emblemOther
Background
Windsor used the coat of arms associated with the Prince of Wales in advertising and on the White Prince's radiator emblem and hub caps.
Action taken
After Buckingham Palace objected, Windsor changed the logo and discontinued the disputed heraldic treatment.
Aftermath
The incident altered the marque's visual identity, although the available source does not document any further legal or financial consequences.
Recent events
- 1930
Windsor Corporation ceases operations[1]
Bankruptcy · Other
The Windsor company ended operations roughly one year after its launch, following the failure of the subsidiary-marque strategy to reverse the Moon group's decline.
- 1929
Windsor Corporation begins automobile production[1]
Product launch · Other
The Windsor Corporation produced automobiles in St. Louis as a subsidiary of the Moon Motor Car Company, using the parent company's manufacturing facility and corporate officers.
- 1929
Moon ends sales under its own name as Windsor operates[1]
Other
Moon Motor Car stopped selling automobiles under the Moon name during the year Windsor was introduced, highlighting the parent company's deteriorating commercial position.
Buckingham Palace objects to Windsor's use of the Prince of Wales coat of arms[1]
Other
Windsor used the coat of arms associated with the Prince of Wales in advertising and on vehicle branding. After Buckingham Palace objected, the company replaced the emblem.
Sources1 sources
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