Blank verso with show-through of the recto

This side of the leaf is essentially blank and, according to the catalogue note, was invisible before restoration apart from part of the lower-left corner, once numbered f. 170 v. e., which bore a small geometric figure belonging to the recto and seen only through the transparency of the paper. The image shows only the faint show-through of the recto's large circle-and-fan construction and a few segment figures; the side itself is devoid of writing and drawing.