He ripped open the silver foil bag and started munching.

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Then, as soon as plastic trays and silver foil have been spirited off to kitchen quarters unknown, our attendant transforms our chairs into two neat - if narrow - bunks, fitted with crisp white sheets and jaunty tartan blankets.

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It is made of gold-plated silver, but the jewels were fakes, with the stones around the bottom rim made from coloured glass and a foil backing.

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