The first buses to come into service did so slightly earlier, though – back in London. As soon as the war began, London’s buses were pressed into action.
Here is a small collection of vintage pictures that show London's traffic with kinds of wonderful buses in the early 20th century.
 
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| A bus and a midget car in a London street, 1928 | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| An early double decker bus on a London street, 1905 | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| Bus at the corner of Tottenham Court Road, London | 
 
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| Buses and trolleybuses in Kings Cross, London, ca. 1930s | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| Buses in London, 1927 | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| Crowded bus on a street, London, 1928 | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| Hammersmith Bridge, London, 1900 | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| Karl Sander, a former German circus performer, demostrates his novel way of advertising as he rides besides a bus in Streatham in south London, 9 August 1932  | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| Kingsland Road, London, 1929 | 
 
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| London Bus in autochrome, 1928 | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| Ludgate Circus, London, 1927 | 
 
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| On Tottenham Court Road, 1927 | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| On Westminster Bridge, ca. 1910 | 
 
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| Piccadilly Circus, London, 1939 | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| Street scene at Trafalgar Square in the winter of 1915 | 
 
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| Traffic in London, 1927 | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| Victoria bus station in London, 1927 | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| Buses in front of the National Gallery in London, 1927 | 
Vintage Photos of Buses in London Streets in the Early 20th Century
 
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| Street traffic on London Bridge, 1927 |