I was kind of thrilled when a guy from work gave me a box full of 8 little boxes of vintage Gillette Blue blades with their little 20 pack dispensers. I used one this morning and it was terribly dull. Is this typical of vintage blades? I will end up just putting the blades in my collection for display if they are that dull. I could not believe how dull it was, and it was definitely a brand new unopened box.