The parchment document, dating from 1415, had been mounted and framed during the early twentieth century. The original wooden box with glazed lid was very heavy and incompatible with modern museum standards of storage and display.

The parchment and seals were cleaned and repaired as required, and then humidified to flatten. It was hinged to a hidden museum board backing, which in turn was attached to a light weight base. This was designed to fit into a bespoke dropback box, which allowed it be to stored, transported and displayed in safety. All materials used were of the highest archival quality, and all attachments were fully reversible.