This Art Nouveau ceiling was discovered under a thick layer of overpaint. After uncovering the painting, the losses had to be inpainted and retouched. This video shows this process

This painted ceiling and wall was discovered under a thick white overpaint. This timelapse shows the method of removing the overpaint, using a hand steamer and scalpel blade

Parts of this Art Nouveau wall painting were missing, this video shows a timelapse of how the frieze was reconstructed

Time lapse of the removal of thick layers of overpaint from a 19th century ornamental ceiling