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Methods of conservation
out to conserve the historic material and all changes brought about as a result of restoration work; it should also include samples of any discarded material and if necessary all of the fragments of historic tiles which have been replaced during the works. It should be a follow-on document from the initial condition survey and both documents should be lodged together in the most appropriate archive, which, if the building does not have its own, may be the local records library or museum.