The clip is entitled "A ride over Westminister Bridge" and features many shots of London trams including those on those on routes 33 and 35
which passed through Kingsway Subway. Because of this the film can be dated as post 14 January 1931, however as some of the trams are fitted with screens then the clip
can be dated as mid 1930s. It is thought that this short clip was used as a backdrop for a commercial film of the period.
Of noteworthy interest is the cyclist weaving in and out of the traffic and the skill of the lorry driver.