Legacy Metrics

1900 Bardon Tonneau

5roadFrance
Engine
1.2L opposed-piston single-cylinder, two crankshafts, dual flywheel, 4/5 hp

A rare 1900 Bardon Tonneau, powered by an opposed-piston single-cylinder engine of approximately 1,216 cc using the distinctive dual-crankshaft system developed by Louis Bardon at Puteaux. One of very few surviving examples from a marque that ceased production in 1903, this car was formerly held in the Malartre collection near Lyon. Its engine, chassis, and wheels have been restored, and a replacement body was constructed by the Swiss coachbuilder Langenthal of Berne. Certified by the Veteran Car Club of Great Britain as a 1900 vehicle, it qualifies for the London-to-Brighton Run.

Ownership

  1. Auction sale
    Sold €95,200 (≈ $105K)

    RM Sotheby's catalogue lot →

  2. → 1976Acquisition unknown
    Musée de Rochetaillée-sur-Saône (Henri Malartre Collection)
    partial documentation

    The car was part of Henri Malartre's collection at his museum near Lyon before being acquired in 1976.

  3. 1976 →Private sale
    Current vendor
    partial documentation

    Following acquisition from the Malartre museum, the engine, chassis, and wheels were restored, and a new body was fabricated by Swiss coachbuilder Langenthal of Berne.

Competition

No competition history extracted from the catalogue.

Maintenance & restoration

  1. 1978
    Inspection

    Vehicle dated and certified by the Veteran Car Club of Great Britain as an authentic 1900-built car; certificate number 1458 issued.

    Certification confirms eligibility for veteran car events including the annual London-to-Brighton Run.

  2. Restoration
    Langenthal

    Engine, chassis, and wheels were restored; the original body was absent or unusable and a new one was fabricated by coachbuilder Langenthal of Berne, Switzerland.

    Coachwork component carried out by Langenthal, a Swiss firm established in 1888 and still active in commercial body building and historic coachwork repair. Date of restoration not precisely stated, but work occurred after the 1976 acquisition.

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Each chassis record is compiled from public auction archives and links to its source material. Ownership, competition and maintenance entries are extracted from those catalogue listings by an LLM, which can make mistakes — please contact us with any corrections. The summary is Legacy Metrics’ own writing; we do not reproduce catalogue text.

“Full” and “partial” documentation labels indicate how well each entry is corroborated in the underlying sources, not an audit of the car’s physical paperwork. Names of recent or living owners are withheld for privacy.