Unravelling the construction of silver filigree spheres from a seventeenth century shipwreck using non-invasive imaging

The structure of five rare filigree spheres from a seventeenth century shipwreck was examined in order to unravel their condition, manufacturing process and function. This study focuses on the application of non-invasive imaging techniques: optical microscopy, X-radiography, X-ray micro-computed tomography and neutron computed tomography. A valuation of different aspects of the applied techniques was made, aiding stakeholders in decision-making on research and conservation. The combination of theory and scientific information was used to obtain an improved understanding of the manufacturing process and function of the filigree spheres.

Automated summary

The structure, manufacturing process and function of five rare filigree spheres from a seventeenth century shipwreck were examined using non-invasive imaging techniques. The study provides decision-making support and insights into their understanding.