Agree, I was wondering, too. Not only the shield is missing on 1,1 - I don't understand the use of the powerchain as there still seems to be some crowding rather than gaps to reduce. The rectangle wire looks genuine, though.
P.S.
Its not a fake, I have found the system: It's called "Ten Brook T1" by OrthoClassic, Inc. from Oregon. There is a large PDF product info, if anybody ist interested in depth.
I don't think I've ever seen that kind of bracket before. Looks like self-ligating brackets, where the little doors rotate instead of slide? And the bracket on one of the incisors is missing that piece?