Stag electric window switch repair

After being laid up for a while it wasn't surprising to find some of the fittings in the Stag needed some attention. One of the electric windows switches appeared to be broken/seized. No amount of persuasion would get it to move to either the up or down position.
These seem fairly expensive to replace so I didn't think I'd have much to loose by seeing what was inside it. After carefully prizing the bits apart there didn't seem much wrong with it. A close look showed that the metal zig-zag contacts may have been slightly bent, so I adjusted the shape a bit with a pair of small pliers. After cleaning everything out and reassembling with vaseline on the contacts I tried it again and it's all working again.