| On 23rd
September 2019 Citybus
celebrated its 40th anniversary and the company held a special event
for invited guests and officially unveiled two new ADL Enviro500s in
early Citybus liveries. 
 A second event was held on Saturday 28th September when members of the
Hong Kong Transport Society were invited to attend.
Photographs of this event are shown below.
 
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| 23rd
September 2019 Photographs
courtesy and copyright of Martin Wong
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| 28th September 2019 Photographs
courtesy and copyright of Philip Chan
 
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