There are actually differences in the Vintage and the New Production razors besides just looks..

The are differences in the steels used, the process of hardening and tempering, and obvious differences in the grinds...

You simply have to search for the info for the New production stuff.

On Vintage razors it is a little harder to figure it all out, as much of the info was either hidden or greatly exaggerated so discerning the truth isn't so easy