Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Palace and Park of Versailles' has mentioned 'Iron' in the following places:
Occurrence Sentence Text Source
These were sources of continual stench, polluting nearby rooms and causing issues of blockage and sewage leaks from the iron and lead pipes which drained the privies on the upper floors.
The ground floor gallery of the south wing was prone to this, to the extent that iron bars had to be installed in the corridor outside the rooms of the Dauphin Louis and the Dauphine when they moved to the south wing in 1745.