1. Science Section, Conservation Department, Victoria and Albert Museum, Cromwell Road, South Kensington, London SW7 2RL, UK
2. Ashmolean Museum, University of Oxford, Beaumont Street, Oxford OX1 2PH, UK
3. V&A East, Queen Elizabeth Olympic Park, 14 E Bay Lane, London E15 2GW, UK
4. History of Art Department, Edinburgh College of Art, University of Edinburgh, 74 Lauriston Pl, Edinburgh EH3 9DF, UK