Approaches to the conservation of patriarchal sigillia on parchment from the General State Archives of Greece

Abstract

This article explores issues concerning conservation of the post-Byzantine Patriarchal sigillia (deeds on parchment) in the collections of the General State Archives of Greece. These documents are of considerable size, often with an elaborate tongue-like projection and a pendant lead seal, typically folded to create a small package. Various materials are involved in their structure, which affects their condition. Folding practices have resulted in severe creasing and planar distortions, while the hanging system and the pendant seal often cause serious mechanical damage. The components could not be separated during conservation, influencing decisions about treatment and intervention. Opening the substrate flat without altering or destroying original features, or affecting the materials involved, is challenging. Storage and hinging methods were developed to provide support without loss of original features.