As always, Bob is an unexcelled repository of minutae about the palace. I had no idea either that the ironwork was blue. I wonder if the extremely cold climate had anything to do with the longevity of the ironwork that does remain. IN a warmer, more humid climate, it would have rusted away long ago with the kind of neglect it has has to endure.
I have a quesiton as well about doors, etc.
Since we know the right wing might be in a far better condition than the family wing, do you suppose there are more original fixtures such as lighting, door hardware, doors, etc. there?