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**ALL ROUND PICTURES FROM SOLARPIX.COM**.**NO UK NEWSPAPER PUBLICATION**.**UK MAGAZINE & SUPPLEMENT PUBLICATION ONLY** AND NO PUBLICATION IN AUSTRALIA, FRANCE, GERMANY, ITALY AND SCANDINAVIA** .Is this 300-year-old egg the largest in the world? It certainly is eggxtremely big!.A 300-year-old giant egg measuring more than three feet in circumference - larger than a rugby ball - has gone up for sale today with a £5,000 price tag..The egg is probably the biggest in the world and was laid by the Great Elephant Bird of Madagascar. 48-year-old Antique dealer John Shepherd, of Ashford, Kent, said he was delighted to be selling it at auction. The egg would have contained the chick of a baby Great Elephant Bird but is now hollow after being broken and pieced back together. Mr Shepherd, a trained palaeontologist who has owned the egg for a year, said: 'I like fossils so it ticks all my boxes.  'The egg is a talking point. It's very eye-catching and it has a wonderful simplicity about it.'.The Madagascan Elephant Bird was the only giant bird to exist with man who ultimately caused its extinction..'It's nice to be able to show children today about environmental issues that have been going on for hundreds of years,' Mr Shepherd said. London, UK. 25 March 2009..This pic: World's biggest egg?..JOB REF: 8717 SFE       DATE: 25_03_2009.**MUST CREDIT SOLARPIX.COM OR DOUBLE FEE WILL BE CHARGED**.**ONLINE USAGE FEE GBP 50.00 PER PICTURE - NOTIFICATION OF USAGE TO PHOTO @ SOLARPIX.COM**.**CALL SOLARPIX : +34 952 811 768 or LOW RATE FROM UK 0844 617 7637**