Legacy Metrics

1929 Rolls-Royce Phantom II Hooper Boattail Speedster

23GNroadUnited Kingdom
Engine
7.7L OHV inline-six, ~160 bhp
Colour
Black with scarlet

Rolls-Royce Phantom II chassis 23GN is a uniquely sporting open tourer bodied by Hooper & Company to exacting personal specifications for Sir Julien Cahn, a prominent cricket patron and businessman, in 1930. The coachwork features a tapered boattail rear deck, a hidden rear seat with its own soft-top, and no bumpers — a configuration unlike any other Phantom II. After wartime military donation and post-war sale, the car passed through several British owners before crossing to the United States, where it received a comprehensive restoration and won the Lucius Beebe Memorial Trophy at the 1997 Pebble Beach Concours d'Elegance.

Ownership

  1. Auction sale
    Estimate US$800,000 – US$1,000,000

    RM Sotheby's catalogue lot →

  2. 1930-04-01 →Factory delivery
    Sir Julien Cahn, 1st Baronet
    full documentation

    Original commissioner of the car; retained it until donating it to the British military war effort in the late 1930s. Died in 1944 before the car was returned.

  3. → 1946Acquisition unknown
    British Ministry of War Transport
    partial documentation

    Vehicle was held by military authorities after Sir Julien's death and ultimately disposed of through a sale in 1946.

  4. 1946 → 1957Acquisition unknown
    H.S.N. Adams
    partial documentation
  5. 1957 → 1964Private sale
    R.D. Linford
    partial documentation

    Held the car for approximately seven years before passing it on.

  6. 1964 →Private sale
    John L. Mackinlay
    partial documentation

    Long-term custodian who regularly participated in Rolls-Royce Enthusiasts Club activities in the UK with the car.

  7. 1988 → 1991Acquisition unknown
    Charles Howard
    partial documentation

    Described as a prominent British broker; retained the car for three years before selling it to an American buyer.

  8. 1991 → 1997Private sale
    Ken Behring
    partial documentation

    American real-estate developer and collector; the car underwent a thorough professional restoration and color change after leaving his collection.

  9. 1997 →Acquisition unknown
    David Hogue
    partial documentation

    Exhibited the car at Pebble Beach immediately after restoration and pursued further mechanical and cosmetic improvements through 2005.

  10. Date unknownAcquisition unknown
    West Coast private collector
    partial documentation

    Identity not disclosed; held the car for an unspecified period after Hogue's tenure.

  11. Date unknownAcquisition unknown
    Current vendor
    partial documentation

    Houses the car among a significant collection of Rolls-Royce and Bentley vehicles; commissioned a mechanical restoration by UK specialist Graham Moss during this period.

Competition

  1. 1997
    1997 Pebble Beach Concours d'Elegance
    Lucius Beebe Memorial Trophy winner

    Car was shown immediately following its restoration to the current black and scarlet livery.

  2. 2005
    2005 Pebble Beach Motoring Classic
    Completed the full tour

    Finished the roughly 1,500-mile touring event without mechanical difficulty; subsequently featured in a December 2005 Road & Track article.

Maintenance & restoration

  1. 1997
    Restoration

    Full professional restoration carried out, with the car refinished in its current black and scarlet colour scheme.

    Restoration appears to have been completed around the time of the ownership transition to David Hogue.

  2. 2004
    Maintenance

    Both convertible tops replaced; correct all-leather spring gaiters fitted by the original Rolls-Royce supplier; a Laycock heavy-duty overdrive unit installed.

    Multiple distinct work items carried out in the same year, encompassing soft-top replacement, period-correct trim, and drivetrain upgrade.

  3. Mechanical
    Graham Moss

    Mechanical restoration undertaken by a noted British Rolls-Royce restorer during the current ownership; supporting receipts accompany the car.

    Lucas P100 headlamps and a correct Phantom II tool kit were also fitted or sourced during the current ownership period.

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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.