Built by General Motors' Canadian subsidiary, McLaughlin, this right-hand drive Buick Model 496 Tourer is one of only two such cars built in the second half of 1927 for the 1928 model year, both of which were used for HRH the Prince of Wales' Ceremonial Tour of Canada in 1927.

The Prince, later Edward VIII, toured the Dominion with his brother Prince George, later the Duke of Kent.

It is not known precisely when the car came to the UK, though the accompanying buff logbook states that it was first registered in March 1933.

The vendor, a motor engineer knowledgeable about pre-1940 cars, first became acquainted with the Buick in the early 1960s when it belonged to Messrs Cyril Piggott and Geoffrey Callow.

They had bought it in 1962 from a Mr Visick who ran Midhurst Engineering, a vehicle repair company.

Midhurst had bought the car in 1962 from a Mr Holtby, an executive of the Standard Bank of South Africa who had a summer home in Sussex and had imported it for his personal use when i...