|Released||17 June 2002 (Update)|
|Quest item||Yes, Clock Tower|
|Examine||A large old cog|
Large cogs are quest items from the Clock Tower quest. They can be found in the Clock Tower cellars, a section of Ardougne sewers. In the cellars there is an intersection of four coloured tiles, each representing a way to a coloured cog. All four of them must be placed on the Clock poles of the same colour in order to complete the quest.