William Jones (F.S.A.) 1883, 'Crowns and Coronations - A history of regalia'. London, Chatto and Windus. (It was republished in 1968 in Detroit by the Singing Tree Press.)

The book starts with a description of 'Ancient Crowns ' and then is entirely about British Coronations. I haven't done more than dip in at the minute but I will report.