Archaeologica.org

Interested in getting a head - - or two ?

http://www.boneroom.com/casts/hominidcasts.htm

If I compare the cast:

with the real thing:

I'm not impressed at all! For that cast they combined the wrong jaw with the wrong skull. That jaw is clearly much too big for the skull that it's combined with.
The real skull was found complete with its mandibles. The lower jaw of the real skull is not nearly as heavy set as the one with the cast is.

I.o.w. the one cast that I can effectively check already proves completely wrong. That makes all the others extremely suspect.

They'd probably be grateful to you for your pointing out to them how badly they screwed up.