Most visitors online was 4107 , on 14 Jan 2023
Can you post a photo of your clock?We had a similar clockcase by Moreau & it was really grey due to it being spelter, which yours looks like.
We cleaned the dust off with a soft brush & a hoover, & then gilded it with Liberon Trianon Gilt cream it looked amazing with a gentle buffing the next day, I'm not sure if you can buy the Liberon in the USA, it is cheaper than gilding with gold leaf.
It will be good to see updated pictures whichever way you do it.