Rare small lidded box from the 19th century

Length 8 cm. Width 7 cm. Nice small lidded box in porcelain from the beginning of the 19th century. The box is made like a bunch of grapes on a vine leaf. It has very few flaws, please see the pictures. Underneath, it is signed with a signature in blue, which could be strongly remind of Royal Copenhagen's signature on older items. Item number: 13803