Coloration on excavated artifacts is going to depend very largely on the conditions in which it is found. I can share many dozens of digital pictures of various excavated artifacts if needed...but I agree that finding good color pictures in books is difficult.
Good luck!
Thanks!
I'm basically going to use my Undead Army as a way of collecting minis from many different companies--stylistic differences shouldn't matter so much, right? I can argue that they're the result of the undead coming from different times and places. I'm also hoping that representing different preservation conditions shouldn't be an issue. To maintain visual coherence, I'll base them all identically and find a strong unifying symbol for them to march under. (At the moment, I'm thinking of a giving each unit a large black banner with a breached white wall in the upper half, with a second charge to distinguish units in the lower half.)
Oh. And I suddenly have the urge to paint a unit of zombies as bog bodies. Don't ask me why.