New to this site. So wife was out on curbside giveaway and tells me she got a present. Presents me with a COF 44 serial number 6652 j. It matches up with scabbard.with frog. Someone tried sharpening it with one of those electric can opener knife sharpener combos I think. Deep scratches the blade. I was curious about the serial number specifically the letter J under the number. Also I'm good at refinishing blades but never had one from this time period. Should I leave it alone. Deep scratches and blueing sanded partially off or should I take out scratches and re blue. Any help would be great. Can't believe this was gonna be garbage the next day if she didn't find it.