I have this French clock that I am restoring. Some have suggested that the dial is slate. It looks to be engraved and filled with gold paint (?). I would like to clean the old out and refill the numbers etc. Please give you advice and wise counsel.
too many differing opinions, and im far from knowing anything about that topic, but i like the face as it is, but i dont like a new looking clocks anyway. Id try doing a search on the subject, because ive seen photos of it being done somewhere.
Do the things you know how to do. So, after carefully taking the dial assembly apart, I cleaned the metal pieces. Still doing the research necessary to feel confident addressing the slate face. I have re-silvered dials and am thinking the process will be similar yet not exactly the same. I have also filled engraved lettering on pocket watch bridges. Another process like I am considering.
It looks more like marble than slate; most of the black French mantel cases described as slate are actually made of marble, which takes a very good polish. The gold coloured incised lines on these marble cases can be restored with a gold felt tip marker and any excess scraped off before it dries fully with the edge of a credit card. This produces a clean result and I see no reason to expect that this marble dial would be any different. A bonus is that it's reversible if you don't like the finished effect.