Side note: The holder is actually made from a sheet of rather thick stamped brass, which is then chrome plated. There are NO maker's marks anywhere on it, which I find very unusual for such a nice piece.
This is how it will be for now, with a temporary rod, until I can figure out how to make/buy/modify parts to make the new missing bits (mainly the decorative brass thumb screw ends) for the new one.
And in case you don't recall, this post has a photo of a nearly identical holder with the original parts: http://my1923foursquare.blogspot.com/2011/09/omg-steal-of-deal.html