|Photo: Francois Guillot / AFP|
All the bells that are now being restored on the occassion of the 850th anniversary of the cathedral were taken down, broken and melted in 1791 and 1792 during the French revolution. The great bell Marie, named in honour of the Virgin Mary, weighs six tons and was made in the Netherlands.
More pictures can be found at AFP, a video at Wort.
Source: Cathédrale Notre Dame de Paris, Wort