There some particular difficulties putting together an exhibition of such old and fragile material. One of the main ones is to ensure that the exhibition environment in the galleries is the most stable it can be and the best for the objects. Our environment is conditioned to 50% relative humidity, varying by 5% each way and to 20°C, varying by 1°C each way. This ensures that the objects can be kept most stable conditions possible for them and to minimise any deterioration in their condition while they’re at the museum. Another thing that’s very important is mounting, suitable mounting to ensure that the objects are safe and supported while they’re on display. Another thing, particularly for textiles and drawings and books, are light levels. These are measured in lux and we need to make sure that the lux levels aren’t too high to fade the object while it’s on display in the museum.