LONDON.- The auction of Antiquities on 7 October at Christie’s South Kensington will offer an exceptional survival from Roman Britain discovered by a metal detectorist. Discovered in Cumbria, in May 2010, the Crosby Garrett Helmet dates from the late 1st-2nd Century A.D. and is one of only three comparable examples ever to have been discovered in the United Kingdom complete with face-mask in the last 250 years. It will be on public display for the first time at the King Street salerooms from 14 September and again at South Kensington from 2 to 6 October before being offered at auction on 7 October where it is estimated to realise £200,000 to £300,000. Georgiana Aitken, Head of Antiquities at Christie’s, London: “This helmet is the discovery of a lifetime for a metal detectorist. When it was initially brought to Christie’s and I examined it at first-hand, I saw this extraordinary face from the past