Fougères (Ferns) (2011.3.298): Many of the objects designed by Rene Lalique, like this one, have water sensitive patinas on the surface which are difficult to clean because water can’t be used and the surfaces are easily abraded. Where there is no patina, the glass can be carefully wet cleaned with brushes or swabs, but the areas with patina can only be cleaned with dry techniques. Gift of Elaine and Stanford Steppa; © Rene Lalique