Truvativ Boxguide, CIRC 2005. Wheel rolls fine, bolts are rusty.
POST Evapo-rust cleaning.
Looks much better, sorta newish. Unable to remove the pitting on the main shaft but with some grease it shouldn't affect the operation of the roller.
I did use a dremel with a small brass wheel to clean up the main shaft, which is how you see it now.