I have a client with some trim she claims once belonged to Marie Antoinette. It is in really bad shape. It may have started on a dress but it was later used for upholstery. She told me in recent years it was stored in a barn in Canada. The silk the trim is attached to is totally rotted and brittle. We would like to save the trim. When I examined it, it was very brittle. I tried to hydrate it by laying it on some washed cotton on a wire rack above a damp towel and sealing it in plastic. When the weather got warmer and my mold allergies flaired up I thought of the trim. The client checked it and found mold. I told her to open it up to dry it out for a couple days then close it up without the damp towel and put it in the freezer. And there it has stayed until I could find time to think about it. I know how to vacuum the trim carefully with a screen. What else can I do to get rid of the mold? Thanks for your advice Kim Kotary free lance conservator and designer