Losing a treasured item can leave you feeling sick, so spare a thought for Francesco Plateroti. The art collector from Italy left a 13th century piece by Chinese painter Wang Zhenpeng called The Banquet of Immortals on the Terrace of Jade on a high speed TGV train from Paris to Geneva. Mr Plateroti got off the train in Bellegarde-sur-Valserine, a French town close to the Swiss border, before realising the artwork - worth €1million (£800,000) - was still in his briefcase in the carriage. Train: An art collector  left a 13th century piece on a high speed TGV service (file photo) from Paris to Geneva
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13th century art called The Banquet of Immortals on the Terrace of Jade
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Piece by Chinese painter Wang Zhenpeng left on TGV train last month
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Francesco Plateroti got off train in French town Bellegarde-sur-Valserine
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Then realised £800,000 landscape was still in his briefcase in the carriage
Francesco Plateroti
Plateroti
Francesco Plateroti
He alerted staff who searched the train upon its arrival at the next stop of Geneva last month, but nothing was found, and Mr @placeholder is now offering a reward for the safe return of the painting.
Francesco Plateroti
Plateroti
Francesco Plateroti
Mr @placeholder added: ‘Anyone who finds and returns this will be well compensated.