A pink javelin signed by Jessica Ennis, a large London2012 Royal Mail stamp autographed by Mo Farah and a Mary Poppins costume from the Olympic opening ceremony are going under the hammer today at an auction in Coventry.
London 2012 chairman Lord Coe described it as a chance for people "to own a unique piece of the Games".
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A large tent has been put up around the area while investigations continue.