I recently had a kitchen fire at home which spread black smoke and soot into an ajoining sitting room. I have numerous Nepalese & Tibetan c19th antique bronze figurines which are now covered with fire soot. As these bronzes are also hand painted using traditional ground stone colours (applied to their outer-faces) I am reluctant to use any water based products including plain water! I have not attepted anything as yet, not even a soft brush and so any GOOD advise would be much appreciated. The soot has also covered porceline items of antiquity and other metalware such as perfume & snuff bottles. Some of which date back to the c17th . . . H.E.L.P!!! Please!