Anyone seem marks like this on a camshaft?

Only two reasons I can think of; 1)Cam-grinder, and 2) also cam grinder.
Are all the marks on the base-circle? Then I would say the cam grinder.

Oh the circular waterspots? I don't know about drip marks. Are they all on a straight line from end to end?Then I would say drip marks.
But if there is no rhyme nor reason as to their positioning, then little aliens are as good a diagnoses as any; except I no longer believe in aliens. I do however believe in inter-dimensionals. But those creatures have a different agenda.
Cam looks caput anyways from here