53 years after buying it, I needed some grinding paste to lap in a radiator drain tap that was leaking. The tin was grime encrusted but a spot of white spirit soon cleaned it up. The labelling is as good as new, thanks to it being integral with the construction of the tin rather than a stuck on paper job. The contents were just as they were when I closed it up last in 1964, still moist and ready to use. Does anyone have anything older, and useable, in the depths of their garage?