I love these zoological grotesque masks from the 16th century. They were designed by Cornelis Floris and engraved by Frans Huys. They were originally published in Antwerp in 1555 by Hans Liefrinck. The original collection was called something like “Ingenious portrayal of several types of mask. Useful for painters, stoneworkers [and other trades].” Basically, they’re clip-art for stonemasons.
(via Neatorama)