Missing folios

[ololololo]

These smudges could have once been writing that was thoroughly erased. The dark color is due to some black residue tucked into the hair pores; the skin around them seems to be of the same color as the rest of the cover. if there was something written there, would anyone try guessing what it was?

The left spots resemble M or 14, the right ones — 10, and for some reason the zero is quite large.