There was a bidding war for the S1 registration plate
Edinburgh's first car number plate has fetched almost £400,000 at auction.
The registration "S1" was originally bought in 1903, the year registration numbers were introduced.
The number plate was first owned by Sir John H A MacDonald, a former Lord Justice Clerk of Scotland and motoring pioneer.
The winning bidder in Friday's auction said it would now be displayed on an old red Skoda which will be seen around the Midlands.
Sir John, also known as Lord Kingsburgh, was one of Scotland's first car owners.
He was a founding member of the Automobile Club of Great Britain and Ireland, which later became the RAC. He was also the first president of the Scottish Automobile Club, founded in 1899.
The historic "S1" plate, which had not been offered for sale since 1903, was expected to fetch between £200,000 and £250,000.
Josephine Olley, from auctioneers Bonhams, said: "There was a bidding battle between several people on the telephone and a bidder in the room.
"The bidder who was present eventually secured the lot to a round of applause."
The winning bidder from the company Bold Registrations, who declined to be named, agreed to pay £397,500, inclusive of buyer's premium.
He said: "I believe that number plates in general are a good investment, even at this price.
"The registration number will remain in the UK and will be going on an old red Skoda which will be seen around the Midlands."
The registration was sold by Bonhams at its Goodwood Revival Sale in Chichester, West Sussex.
In 2005, Bonhams sold registration "1F" for £144,500 and in 2006, it sold "M1" for a then world record auction price of £331,500.
In January this year, car design entrepreneur Afzal Kahn paid £440,625 for the Formula One initials "F1".