"The process of restoration is a highly specialized operation. Its aim is to preserve and reveal the aesthetic and historic value of the monument and is based on respect for original material and authentic documents. It must stop at the point where conjecture begins, and in this case moreover any extra work which is indispensable must be distinct from the architectural composition and must bear a contemporary stamp. The restoration in any case must be preceded and followed by an archaeological and historical study of the monument."

Venice Charter, Article 9

For this reasons the Artist Blacksmith might decide to keep a piece of forgework, corroded to much to survive in the external, in a dry, protected area and replace it by a well made replica.

Some examples for this solution under the Replica button.

The following pictures usually show the before / after situation of the forgework and original / replica in succession.