This is a pretty cool set of prototypes that show the thought process and use of existing product. Another reason that I collect test shots, is that they tell a story and show a glimpse of the process behind each piece.
Both of these steeds have hand placed and glued armor/saddles ect. As you can see they even started the fitment on Brego(the brown horse which was already released at the time), instead of Sauron's Steed. This was to get the fitment right before production. You can also see that Brego doesn't have the paint on the rubber or the horse plastic itself. The leg function isn't installed on them either. Both have internal tracking numbers used by Toy Biz to trace their prototypes.
Mouth of Sauron is also a unpainted test shot, and is cast in a cheaper test plastic. He also has internal tracking numbers.
To see more Toy Biz prototypes go HERE!
Do you have any info on his sword?