UPDATE: Ok, after turning on my dehumidifier and placing the
Heavy Unit manual in a container of baking soda, I think I may have figured something out...
...csgx1 is correct, that isn't a mold pattern.
IT COULD BE:
(1) aerial view of a "moon" depicting "faultlines" and craters...
(2) aerial view of earth depicting rivers and giant floating spores...
(3) painting entitled "Lilac #3"
Hmmmm....