[mattb150]

Is there writing/drawing where the red arrow points, or am I just seeing things?
https://i.imgur.com/N5KrK5O.jpg

I do see some harder edges there than in other places, as well as some other signs that maybe something is added in there. My best attempt at isolating it: https://i.imgur.com/Ku2NhuT.png

Its a tricky spot, I'm going to fiddle some more with it.