“When taxis began to arrive from the railway station bearing a small flock of art dealers from London, the small country auction rooms suspected something was up. A few hours later, a little painting on copper of a laughing young man, valued at up to £1,500 as in the style of Rembrandt, had been snapped up by an agent for an unidentified bidder for £2.2m.” The buyer believes it’s a genuine Rembrandt. The experts say no way.