Hello, I am completely new to this forum and have a couple of questions about a knife I found with my grandfather's stuff while going through my garage. It's not in great condition so the first thing I would like to ask is if anyone has tips on how to restore/repair it. the second is whether or not anyone knows whether or not it might actually be from 1917 as the engraving states
here are some pictures:
https://imgur.com/a/dw9b6
the third picture is after I cleaned it off a bit using steal wool and sand paper