A Shade Out of Whack

Perhaps I'm being a bit dim, but for the life of me, I cannot find similar swing arm hardware similar to that pictured here.

Any thoughts?  I'm on a roll and am afraid that if I flounder for long I will lose interest and retain the tired shade for another eight years or so.

Your help, naturally, will be greatly appreciated.

Image, House Beautiful, August '08 in all it's simple perfection.  Adore the waste can.