Legacy Metrics

1933 Pierce-Arrow Model 1242 Twelve Convertible Coupe

3100006roadUnited States
Engine
7.6L (462 cu. in.) V12, 80-degree bank angle, 175 bhp
Colour
Deep Pewter grey with blue belt moldings and underbody

A 1933 Pierce-Arrow Model 1242 Convertible Coupe, powered by the 462-cubic-inch V-12 producing 175 bhp, is one of only three known survivors from a series of 118 units built that year. Restored in California in the early 1990s by restorer Jack Dietz, the car earned an AACA National First award in 1995. Finished in Deep Pewter grey with blue accents and a red leather interior, it is recognised as a CCCA Full Classic.

Ownership

  1. Auction sale
  2. → 1999
    William Lassiter
    partial documentation

    Commissioned a full restoration by Jack Dietz in California during the early 1990s; the car earned an AACA National First award while in his ownership in 1995.

  3. 1999 →Private sale
    Terry Johnson
    partial documentation

    Canadian collector who purchased the car from Lassiter and has maintained the Dietz restoration in conserved condition.

Competition

  1. 1995AACA National
    AACA National First Award
    National First Award (medallion no. 19B0630)

    Awarded during William Lassiter's ownership following the California restoration by Jack Dietz.

Maintenance & restoration

  1. Restoration
    Jack Dietz

    Comprehensive restoration carried out in California during the early 1990s, resulting in the current Deep Pewter grey finish with blue belt-line trim, red leather interior and rumble seat, and matching carpets.

    Commissioned by then-owner William Lassiter; the quality of the work was sufficient to earn an AACA National First award in 1995.

  2. Service

    Careful conservation of the existing restoration work combined with a recent full detailing; the car was confirmed to run and drive well.

    Carried out during Terry Johnson's ownership, prior to consignment.

Are you the owner of this car?

This car's public record is built from its auction and competition history. Register your ownership and privately add your own records to make it a verified Legacy Metrics passport — provenance that backs your car's value at sale and gives your insurer evidence to price against. Roy reviews and verifies every registration personally.

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.