Suffragette Demonstration Hyde Park 1912. A group of suffragettes on a platform, blow bugles at the W.S.P.U demonstration In Hyde Park, July 14th, 1912. The flag pole with the W.S.P.U flag has the scarlet cap of liberty on the top, a symbol of revolution. The rally was largely the work of Sylvia Pankhurst and Mrs. Drummond as Christabel Pankhurst was in exile in Paris.