In his journal for 27th April 1762, John Wesley gives a description of a speaking clock made by a Mr. Miller of Lurgan, Ireland. The Paris Exposition of 1900 featured a clock 6 ft. High which announced the hours in a human voice by means of a phonograph. The first true speaking clock was the invention of Hernhaard Hiller of Berlin. An endless celluloid band carried 48 tracks upon which was recorded, 'It is one o'clock, it is quarter past one o'clock' and so on, for a 12-hour clock; or the half-hours for the 24-hour clock. A gramophone motor turned the band and a gramophone soundbox converted the recording on the track into sound, amplified by a small trumpet. The best-known speaking clocks today are those which give the exact time via the telephone system, of which the earliest was installed in Paris in the early 1930s. The British system commenced on 24th July 1936 with a voice recorded on glass record discs. A Hipp-Toggle maintained pendulum was used for the time control with master-clock control correction, an error of one-tenth of a second being maximum allowed. An electric, domestic speaking clock was introduced by the Japanese in the 1970s.