Scott 6T11 yoke question..

[Phil]

I'm in the process of trying to bring a Scott
6t11 back to life and have encountered something in this set I've never seen before.
At the end of the yoke which would be closest to the screen of the CRT there is what appears to be a winding of Rusty iron wore. Also there is a spring clip sort of thing sticking out, which is connected to the ground pin of the yoke connector so this would be to ground the aquadag. On the opposite side there is something that looks almost like steel wool sticking out. I have no clue what it is supposed to do. The horizontal, vertical and focus windings all measure exactly what the manual says they should, so I'm hoping it is good.
Any Scott people know what the Rusty wire is for? Possibly a magnetic shield?