This engraving, from a series of 12, was designed by Marcus G[h]eeraerts (c. 1520-c. 1590) and printed by Philips Galle (1537-1612). Currently it is now part of the collection of the Rijksmuseum Amsterdam [1, 2, 3].
In the centre a man and woman, encircled by grotesques and in the lower side two birds and two snails.
Both snails are stylised, seen in 2D squashed view, with two tentacles and an eye-spot. The shells have an extremely wide aperture and suggest a thickened apertural lip; one shell is dextral, the other sinistral.
 Marcus Gheeraerts was born in Bruges where he worked till 1568; after a 9-years period in London, he was active in Antwerp after 1577. http://explore.rkd.nl/explore/artists/31308.
 Philips Galle worked in Antwerp from 1570 till his death in 1612; http://explore.rkd.nl/explore/artists/30045.
 RMA, inv. RP-P-1892-A-16771. http://hdl.handle.net/10934/RM0001.COLLECT.382470.