It is pretty amazing how well some of the older sliderules held up over time; all of my collection seem *very* high quality (most of them are now collector's items) as compared to the newer ones today.
For can-openers, well....I don't know; does Oxo have some good ones that aren't too expensive? Really...It is only a can opener; how hard is it to make one durable and sharp that lasts a long time? Doesn't have too many features to break or worry about.






