From the listing for this 70’s F1 Car for sale:

1979 SHADOW DN 9 FORMULA ONE – Ex JAN LAMMERS

This superb Shadow DN9 with its particularly eye-catching livery raced the 1979 Formula One season in the hands of Jan Lammers, who was taking part in his first Formula 1 season.

At the end of the Formula 1 season, the Shadow DN9 Chassis N° 2B was kept as part of a collection in Great Britain before being sold by Hall & Hall to a French driver, Mr. Michel Baudouin, in 2009.

In 2012, Michel Baudouin sold it in turn to its present owner, who commissioned Hall & Hall to undertake a complete overhaul of the car with a view to entering it for the Masters Historic Formula One Championship. The work was completed in 2013 and the Shadow DN9 took to the track again after many years’ absence.

1979 Formula One season. Driver: Jan Lammers

Argentina : Qualif: 21st ; Race: retired

Brazil: Qualif: 21st; Race: 14th

South Africa: Qualif: 21st; Race: retired

USA West: Qualif: 14th; Race: retired

Spain: Qualif: 24th; Race: 14th

Belgium: Qualif: 21st; Race: 10th

Monaco: Did not qualify

France: Qualif: 21st; Race: 18th

Great Britain: Qualif: 21st; Race: 11th

Germany: Qualif: 20th ; Race: 10th

Austria : Qualif: 23rd; Race: retired (gearbox)

Italy: Did not qualify

Canada: Qualif: 21st; Race: 9th