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The clock in St Mark's Square Venice displays the original I to XXIIII numbering around the outside, with I at the right hand side. The gilded stars are purely decorative. The signs of the zodiac are in anticlockwise order around the inner zodiac dial: the zodiac wheel rotates clockwise with the hour hand but very slightly faster. As a result, the hour hand moves slowly anticlockwise relative to the zodiac, so that it passes through each sign in the course of the year.  (Text Wikipedia)