This post shows some funny details on surface patterns.
I got some photos in really good quality with many details about LM-5 from a guy a acquaint during my visit to the launch site. His photos made me almost redraft my design... So I was able to add minute characters on the surface of the rocket.
This one looks normal. Although I don't quiet understand those jargons and I'm not an engineer.
But next:
Well, I know there are some words at some places and I even know the number of characters but I can't recognize them.
So, make jokes.... and make sure no one could recognize them when printed.