Die Kunstauktionatoren hatten behauptet , später ‘nen echten Dürer zu versteigern , und tatsächlich haben sie dann aber keinen echten Dürer versteigert .
the art.auctioneers had claimed later a real Durer to auction and in.fact have they then but no real Durer auctioned
The art auctioneers had claimed they would auction off a real Durer later, but then, in fact, they did not auction off a real Durer.