1956 Porsche 356A 1500 GS T1 Carrera Cabriolet

Original purchaser, took delivery in Germany. Factory Kardex records services through mid-1961; original engine reportedly failed early and was replaced with another period-correct unit.

Original German registration document records a sequence of seven owners across this period, ending when the car was exported to the United States.

US Army interpreter who shipped the vehicle to the United States; his name appears as the last entry in the original German registration document.

Acquired the car via trade from Bill Brown; sold it in 1993.

Purchased from Wilkie and immediately undertook a full restoration in 1993–1994, with engine work carried out by specialist Bill Doyle. Subsequently showed the car at concours events across the United States.

Brought the car back to Europe and commissioned a comprehensive restoration by Dutch specialist Siemerinck; engine serviced by Karl Hloch in Germany and hood restored by French firm Duval. Car repainted in original Azure Blue.

Member of the Stihl power-tools family; confirmed ownership via a written statement dated 2015. Duration of family tenure is not precisely established.

Subsequent American owner; no dates or additional context provided.

The first owner and his brother-in-law Philipp Constantin Graf von Berckheim were regular participants in 1950s motorsport; the Mille Miglia is among the events specifically cited. Exact year and result not stated.

Listed among period events entered by the first owner and his brother-in-law; specific year and finishing position not given.

One of several period events cited as part of the first owner's competition activity in the 1950s; year and result unknown.

Following the 1993–1994 restoration under Ross Collins, the car was exhibited at multiple American concours events; specific names, dates, and results are not recorded.

A full restoration was carried out across 1993–1994 following purchase by Ross Collins.

Engine overhauled separately by specialist Bill Doyle as part of this programme.

The Carrera engine was overhauled as part of the 1993–1994 restoration.

Doyle is described as a specialist; work carried out concurrently with the broader restoration.

An extensive recommissioning and restoration was undertaken after the car was returned to Europe, covering mechanical and cosmetic work, repainting in the original Azure Blue, and hood replacement.

Work performed by classic Porsche specialists based in IJmuiden, Holland. Restoration photographs are retained in the car's documentation file.

The Carrera engine was serviced as part of the 2012 European restoration programme.

Hloch is described as a Carrera engine specialist based in Schorndorf, Germany.

The convertible hood was renewed during the 2012 restoration.

French soft-top specialists carried out this element of the restoration.

The original engine (P90617) is believed to have failed early in the car's life and was replaced with another period-correct Porsche 547/1 Carrera 1500 GS unit, now numbered P90821.

Replacement occurred during the first owner's tenure; exact date unknown.