Gee whiz, I NEVER would have marked the silly thing. That's way too easy. That, by the way was sarcasm.
Now that the pencil and scribed lines have been covered. Why didn't you mention them with your first response to the OP?
Did you assume something like maybe someone who had never taken a lens apart would know they should use witness marks.
"Be sure you understand what you are doing". I think that covers it. What the hell is your problem?