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The shape of the balloon, its upper half covered by netting, indicates this is a hydrogen balloon. The cityscape with a view of Saint Paul’s Cathedral depicts a flight over London, possibly the 1784 flight by the Italian diplomat and ‘daredevil’ Vincenzo Lunardi. He launched his balloon in front of some 200,000 spectators at London’s Artillery Ground, floating with a dog, a cat, and a caged pigeon for 24 miles into Hertfordshire.
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