A billionaire art collector has offered to pay for the restoration of a Henry Moore marble arch. “The six-metre tall work, given by Moore in 1980 to the people of London, was removed from Kensington Gardens and dismantled in 1996 on safety grounds. The sculpture is unevenly weighted, and soon after it was installed it began to twist. In addition, travertine, the stone of which it is made, is susceptible to damaging cycles of freeze-thaw in cold weather. The Royal Parks, which manage Kensington Gardens, have estimated that to repair it – by inserting a steel “spine” – would cost around £300,000, which they say they cannot afford.”