The "All that's best in Britain" advertising campaign for the Standard Vanguard, Triumph Mayflower and Triumph Renown was heavily featured on the front covers of "The Autocar" and "The Motor" magazines between January and August 1951.
31st January 1951 (left:Vanguard) & 2nd February 1951 (right: Mayflower)
21st March 1951 (left:Vanguard) & 13th April 1951 (right:Mayflower)
2nd May 1951 (left:Vanguard) & 13th May 1951 (right:Renown)
15th May 1951 (left:Renown) & *18th July 1951 (right:Vanguard)
22nd August 1951 (left:Vanguard) & 31st August 1951 (right: Mayflower)
* The Standard Vanguard's appearance on the front cover of "The Motor" on the 18th July 1951 was literally the day after the car itself went on display at the South Bank Exhibition's Transport Pavillion from the 17th July to the 4th August, 1951.
"All That's Best in Britain" sales brochure for the Triumph Mayflower Drop Head Coupe: before (left) and after (right), featuring the Lion and the Unicorn either side of the slogan, very similiar to the ones used at the South Bank.