There was a period of time, maybe a bit more than a few years ago, that they used silver boxes. As far as I know. I have some silver-boxed-big-letter-C product that turned out to be ok. I would date that as being in between the red packaging of today and the sort of screw-head logo packaging of many years ago. Others here with more knowledge than I have may have a more precise idea of how old it might be.