Atmospheric Railcar, c 1860.
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The idea for a pneumatic railway was devised by British inventor George Medhurst (1759-1827) in 1810. He proposed that a carriage containing goods or pasengers could be blown along rails in an iron tube by the action of compresed air. The idea was revived in 1860 by the Pneumatic Despatch Co for the transport of small goods, particularly mail. Subsequently, a four foot diameter tunnel was built between Euston Station and a district post office, with a later connection to the General Post Office but this was not a lasting succes.