Breakdown on Westminster Bridge . Old crocks race to Brighton in Emnacipation day run . The annual Old Crocks motor trial from London to Brighton , commeratig Emancipatio Day , when motorists were allowed to dispense with the services of a man with a red flag , commenced from Wilson Street City . Nearly a hundred cars , led by a veteran German , 41 years old , are taking part in the trials . Photo shows , Old Crocks passing along the embankment on the way to Brighton . 17 November 1935