This is a black and white woodcut illustration depicting a knight in armor. The knight is in a dynamic pose, appearing to be in motion, possibly riding a horse (though the horse is only partially visible). The knight is fully armored, with detailed lines representing the plates of the armor. The style is reminiscent of medieval woodcuts, with bold lines and a somewhat crude, yet expressive, aesthetic. To the upper right of the knight is the number '21' in a bold, stylized font, also in black. The background is filled with decorative foliage and patterns, adding to the overall medieval feel of the illustration. The image has a square format and appears to be a page from an old book or manuscript.