This manuscript in the Bibliothèque Nationale, Paris is a “Horae ad usum Romanum” from the 15th/16th century and is available at this moment as uncoloured copy . Four instances of snails have been spotted in this manuscript, all with stylised animals with two tentacles; some are humanised.
The first is on folio 55v. In the upper left corner a dextral specimen is seen. Although the outline of the shell appears smooth, the colour pattern gives the appearance of a semi-segmented (‘cloudy’ or ‘sheepy’) shell.
The second is on folio 71r, where in the right-hand border a sinistral specimen is observed, with regularly increasing whorls and a smooth outline.
Next is on folio 87v in the lower left corner a dextral specimen with a semi-segmented shell and a thickened apertural lip.
Finally on folio 91r, the centre lower border shows a snail amidst strawberries. It is also a dextral specimen, similar to the previous one.
 BNF, inv. Ms. Latin 1408, 122 ff. http://gallica.bnf.fr/ark:/12148/btv1b9065943c.