The first item is used by professional butchers to keep their knifes sharp all day long and is called a steel. Knives are only sharpened after an 8 hour shift, this is used all throughout those eight hours as needed. Not sure if the surface rust on this one has ruined it or not - I'm not a butcher, it might be brought back to a useful life with a power wire brush and a lot of use? But I wouldn't do a thing until I talked to a real slaughter house butcher about it.
Spring loaded plastic pick can't be too important? In other words, I think I can live without one. What ever it does, it's NOT a test light.