Since the West Swiss unit of the Swiss Institute for Art Research (SIK|ISEA) at UNIL has no laboratory, the team in charge of the globes asked the restorers at the institute’s main site in Zurich to take over. In autumn 2014 Margaux Genton, an assistant restorer, came to Lausanne for a preliminary examination of the globes in situ. Having already restored a 17th-century celestial globe, she had both the experience and the knowledge needed for this type of job.
It was agreed that the globes would have to be taken to the SIK|ISEA’s laboratories in Zurich for additional analyses (including a C14 test of the celestial globe using a new, non-invasive method) and then be cleaned and consolidated with a view to conserving and exhibiting them. The transfer took place on 10 November 2014.
SIK|ISEA was asked to perform the following tasks :
- assess the various analyses conducted hitherto,
- and summarise the results,
- find out more about the globes’ constituent materials and construction using various other methods of observation and analysis,
- assess the globes’ state of conservation,
- consolidate and restore them.
To accomplish this mission, SIK|ISEA used new methods of observation and analysis which are listed below.