Welcome! You came to the right place . Grandfathers razors huh? Thats super cool. you cant buy that kind of thing. I'm sure they will be your most treasured razors years after you are consumed with R.A.D and have a walk in showcase of straights LOL! I'm to green to answer any of your Q's but I will give you this lil bit. dont go jumpin into the razor honing game just yet. Lots of people here do it for a great low price. It's a whole different animal that takes lots of info. You should learn it( I would hate to lose a family razor in shipping) but take your time. I dont plan to ever hone. If I learn anything else I have to forget 5 things. good luck to you .