The dusty old drawing set to make £200 at auction and how it eventually sold for $515,000 (www.countrylife.co.uk)

When the bidding for a charcoal drawing originally estimated to $200-$300 in the October sale at Marion’s Antique Auction in Massachusetts rose to $200,000, the auctioneer admitted: ‘Well, I guess we underestimated that one a bit.’