It a decorative plate featuring Krystyna Potocka portrait by Angelika Kauffmann, Swiss painter and portraitist. The item had a mark of Karolina porcelain factory.

The Krystyna Potocka portrait that one can see on the plate is a copy of Angelika Kauffmann painting, Swiss painter and portraitist (1741-1807). There are clear influences of ancient and English art. 

The plate itself is 24,5 cm in diameter. It is richly gilded.

The Karolina mark: