I have a pair of RD350B forks, wheel, calliper and disc sat idle in the garage.
It was parts inherrited from a mate, back in the late1980's, when he emmigrated.
They were part of a project to fit them to a CZ350 drum braked bike. It turned out that the RD forks screwed up the handling and the disc wasn't any improvement over the TLS Drum he was replacing, so they were removed again.
So they've sat in my fork collection ever since then, coated in grease for protection.