In an earlier post (item #42), I showed an engraving from Jacob Kempener which might have inspired early painters of flower still-lives at the beginning of the 17th century. Today’s engraving evolved from the previous one, and is dated ca. 1590–1595. It is designed by Kempener and engraved by Johann Theodor de Bry (1561–1623) in Frankfurt am Main; it was part of the series “Polyptoton de Flore”. 
The snail on the left side of the vase with flowers is seen on its back, with only the two larger tentacles shown. On the shell darker spiral bands may be seen at the periphery and below the suture. This suggests that a Cepaea species was used. The shell seems sinistral, but assumed to be the result of mirror-imaging due of engraving.
In this case I would dub the snail as ‘semi-stylised’, as snails are not as course as we have seen in earlier works though not as precise as we’ll see in later ones.
 RMA, RP-P-2004-321. http://hdl.handle.net/10934/RM0001.COLLECT.422398 (permalink).