Hi Dior ladies, I have a vintage (from the '70s) Dior monogram wallet. The monogram is the tapestry / embroidered canvas material. It was well used for years so is very dirty - the cream background is quite grey. What is the best way to clean the material? Has anyone done it? I can't put the whole lot in water, since it's leather around the outside. Someone said I should use that spray on and brush off carpet cleaner, which seems scary. Maybe I should just wet it and use wool wash detergent & a soft brush? Any advice from experienced Dior owners is welcome; thank you.