Elusive street artist Banksy said Thursday that a new sculpture that appeared in central London of a man striding off a plinth, with his face blinded by a billowing flag, is his work. In a humorous video posted Thursday on his Instagram account, Banksy showed snippets of how the sculpture was put up in the dead of night. The sculpture appeared to have been erected in the early hours of Wednesday on a plinth on a traffic island in Waterloo Place, near Buckingham Palace. Banksy has claimed a new London sculpture showing a man striding off a plinth with a flag covering his face. Getty Images Before the artist’s post, locals and tourists gathered to inspect the statue on the assumption it was Banksy’s work because his signature was scrawled at the base of the plinth. The statue is situated close to those of King Edward VII, who reigned between 1901 and 1910, and legendary nurse Florence Nightingale, as well as the Crimean War Memorial. Statues are not what Banksy is primarily known for.…