I say restore them. The first one has a LOT of rust, but even if you just have the rust removed, they would love you for it

Anything to keep them from getting worse

The 2nd one (with the etching on the blade) is awesome

Do your best to save the etching if possible!

You're lucky to have razors your great, and Great-great-grandfather used !

Wish I had something as special as that...