Baker sculpts an early Werewolf. This configuration is very similar to one of the stages that would appear in American Werewolf in London.
The transformation test.
Picardo in make-up.
The first Change-o-Head.
The second Change-o-Head.
The third Change-o-Head.
Other minor transformation effects.
Karen transforms.
Early test with an unused Werewolf head design.
The early suit and animatronic head.
Shank’s unused rod puppet.
Kuipers sculpts an unused redesign.
Filming the final Werewolf suit and animatronic head.
Dante with the unused rocket Werewolves.
Main Article: Howling Beasts
Monster Legacy 
Great! Keep ’em coming! Love this!
Thank you Thomas! 🙂
Fascinating breakdown of the differences between early-and mid-production suits. I guess the former were used in at least a few marketing stills, because the difference between those and the focus shots on transformed werewolves are minor but distinct. Thanks for sharing, and I’m inclined to agree with Baker: wolves need some embellishing to make proper horror subjects.
Yes the early suits and puppets are mostly seen in publicity photos. You can distinguish the early wolf head from the film one by looking at the teeth or the eyes. The early suit you can glimpse when Terri is attacked in the cabin. Everything else was reshot.
And agreed – film werewolves cannot be just big wolves! Boring!