Line art in 2e AD&D - A Paladin in Hell

 I love me some line art... and AD&D second edition just has spectacular art all around. Take this for instance, out of the "A Paladin in Hell":

That bone devil's skull-face is mostly white, but it works. All those detailed lines in other areas are tremendous. I'm not sure what the fuzzy white squares are... maybe some issue with a scan.