The Book of Hours “Heures de Menault de La Salle à l’usage de Reims” in the Bibliothèque Municipal in Reims (France) was made around 1480, either in that city or in Paris. 
In the lower border of folio 30r a stylised, sinistral snail may be seen with an apparently ribbed shell. Its rather shapeless body has four tentacles. The miniature shows the Virgin Mary with the Child.
 Reims BM, Ms. 359, 123 ff. http://bit.ly/1n5WDAh (2.ii.2014).