http://www.kunsthaus.ch/en/the-collection/conservation/examples-from-the-world-of-art-conservation/conservation-and-restoration/nach-restaurierung/?redirect_url=www.skazkipro.com%2Fpartner.php%3Fcode%3DZLZV

Kunsthaus Zürich

Conservation treatment

Conservation treatment

Area of the picture above after conservation treatment
Area of the picture above after conservation treatment