The Mayor of Marylebone and Amy Johnson open show in Gt Portland St.
Full title reads: "London's permanent Motor Show. The Mayor of Marylebone, Mrs. Amy Mollison, Lady Malcolm Campbell and many notabilities at inauguration of Great Portland Street Traders' novel and enterprising effort."
Pan from sign '2,000 cars to choose from' to show dignitaries walking past crowds onto podium. Crowd moves forwards to get a better view. We see Amy Johnson (aka Mrs Mollison) get onto podium.
Unidentified man gives a speech (mute).
View of Amy Johnson with Mayor of Marylebone in open topped car driving through crowds. Travel shots of the car as it travels along Great Portland Street under banners. Banners reads: 'Buy with Confidence' and 'Gt Portland St Gala'.