Hello Piers
Thank you for your helpful suggestions. I have tried to take some close ups of the parts of the blade you suggested. Hopefully, they will come out okay. I did find some numbers on the handle parts. They all have what looks like the number 156, but I can not find a number on the blade. Could it be on the tang under all the rust? Also there are some markings on the top of the handle where it meets the handle or guard with all the washers. I have tried to include photos of those too, but my camera just isn't powerful enough to get that close and be clear. Again, thank you for your help.
Lori