Conservation is the use of active physical measures to prevent the further deterioration of an archive. Consideration has to be given to the use of:
- approporiate chemicals and conservation grade materials to repair documents
- suitable professional repair techniques
- the minimum intervention required to ensure the continued existence of the item.
These photographs show (left) repair to a large map and (right) a selection of tools used by the conservation team. See the photograph of tools in more detail here [PDF 1042KB] 
