Advertisement for Johnson's Car-Plate showing Earl Howe with his 1939 Lagonda V12

From the programme for the 1952 British Grand Prix, held at Silverstone, 19 July 1952. The car appears to be Earl Howe's second Lagonda V12, bought in 1939 (cf. this advertisement for the auction of his first V12 in 2007: "Howe was to trade this car in for a new model in 1939"); the JPC registration was issued in Surrey from July 1939 (see www.oldclassiccar.co.uk/registrations/pc.htm ). I do not know if the car survives; according to the DVLA database, its registration was put in 1954 on a new Aston Martin which ceased to be licensed in 2001.