Sarah Griffiths, writing for the UK Daily Mail, examines the history of the Hartley violin and the scientific tests taken to determine its authenticity. The various tests–a CT scan, forensic testing of the metal plate, examination of the wood–along with documentary evidence leads to the conclusion the violin is authentic. Additionally corrosion tests match submersion in seawater. Although the violin was not listed in his personal effects when his body was recovered, it is believed that it was regarded as luggage rather than a personal effect.
Henry Aldridge & Son claims it invested thousands in getting the violin authenticated. And when it goes on the auction block on 19 Oct, they expect to make it all back (and quite a bit more as well). The violin will likely set a new record if it sells for the estimated £4000,000. I suspect it will sell for a lot more than that.