Torsion bar ident

Ok I know this has been done to death, but I can't find this in any guide.

Any guesses?

http://m.flickr.com/#/photos/z3v0/7026089257/in/set-72157627283149120/

http://m.flickr.com/#/photos/z3v0/7026087919/in/set-72157627283149120/