In Creil, Dept. Oise, France, the small Musée Gallé-Juillet  has a rich collection of locally produced ceramics. Although no documentation exists on this piece, this presse-papier was possibly designed or inspired by Ernest Gallé (said to be painter and collector of shells). It is dated between 1878 and 1920, although the Faïence de Creil-Montereau closed in 1895 [1, 2, 3].
The snail on top has thickened growth striae and apertural lip, and is thus typically Helix-like. However, it is atypically sinistral! The animal is slightly stylised, probably due to the production process.
 GJC, inv. 2304. Joconde | escargot (réponse #120); http://to.ly/z3mH.