The city of Nevers along the Loire river in Bourgogne, France, has a long record of producing ceramics. At the end of the 16th century, Duke Louis IV Gonzague de Nevers, who originated from Italy, brought three brothers from Mantua introducing the production of faience in Nevers . Antoine Conrade was one of these, and he produced some plates which are now in the Château-Musée de Saumur .
The first is an oval plate with animals and plants, dating from the first half of the 17th century. In this rather coarse design, two snails may be seen with some imagination. It is hard to say whether they were modelled after a dextral or sinistral specimen; the right one seems to be sinistral.
The second is a round plate with a design in the same style. Here one snail is present, which is clearly recognisable although is very stylised. The animal has two tentacles and the shell is sinistral, with a extremely large aperture.
 CMS, inv. 919-13-1-0282 / 919-13-1-0283. Joconde | escargot (réponse #17-18).