Edmund Capon, an expert in early Buddhist sculpture who heads the Gallery of New South Wales in Australia, adds a surprising twist, however.

ECONOMIST: Chinese archaeology

Amtrak's financial struggles are more a result of inadequate public support than managerial incompetence, responded Ross Capon, head of the National Association of Railroad Passengers.

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To add to the puzzle, in 1988 Mr Capon bought for his museum a Buddhist sculpture of the Eastern Wei period, which dates from 535-40 and is exceptionally close to the style, material and quality of the Qingzhou sculptures.

ECONOMIST: Chinese archaeology