These drawings might have been done by Robin Hardy or Seamus Flannery, the art director. At first it had a face. They settled on a faceless version. See Brown's book for a fuller explanation. (ibook pgs 228-230)

Wmd 1

Wmd 2

Wmd 3

Wmd 4

Wmd 6

Two versions of a drawing done by Seamus Flannery.

Wm 1 fixed
Another version that shows the base better.
Wmd 5