A tiny gold coin depicting the Roman ruler Allectus crushed pre-sale estimates as fierce bidding at the headquarters of London auctioneer Dix Noonan Webb (DNW) catapulted the price to $695,000. DNW had predicted the coin would fetch between $90,000 and $127,000. The news came as a sweet surprise to the 30-year-old amateur metal detectorist, who […]