Originally Posted by
SuperSpeedRacer
I agree with Wade. I have primarily vintage razors and they differ substantially between manufacturer and country of origin. I think the only way you could fairly test whether older razors have steel different from modern razors is with a much bigger sample size of razors than most of us own. Phrank, from what I gather, may have enough razors but I suspect the rest of us probably don't.
P.S. I didn't see that Phrank was the OP. That being the case you probably can't tell from comparisons between different manufactures on one to one tests. You'd have to average across a lot of razors to make sure that it isn't just differences in manufacturers that's accounting for what you're noticing. Better yet if you have a bunch of razors of different age from the same manufacturer - compare those but that would just allow you to make a claim that in the case of that manufacturer age matters. If you're doing a large sample with numerous manufacturers you may be able to draw a more general conclusion but with much less certainty.