I always love to see how older knives like that were sharpened.
It is like finger nails on a chalkboard to see their "technique" back then as it still appears on the blade.
It looks like his best effort involved a file..... at least he didn’t take it to a grinder....
I refaced the angle at 20* with my Lansing sharpener, much like Dan308 shows in his video.
It’s going to take some more work, but I know I’m going to get the edge I want.
I have a trip to Crane Prairie, for some cranebows in a day or two. I put it to work there.