Erma Felna EDF page 136

 
THE COLONEL
2016-11-30 13:06:35 
Zip-a-tone.....lots of Zip-a-tone. now that's a blast from the past. THE COLONEL
Dave F
2016-11-30 15:56:27 
@The Colonel. I think it was toned with an airbrush then "halftone" printed. The scan seems to be from the printed comic rather than the original art, somehow avoiding noticeable moire patterning.
THE COLONEL
2016-12-01 12:00:28 
Either way, still very "old school".