New to this posting. Not sure where to start but looking for help. I own a mid 60's Holt bulldozer and I think I want to sell it. My father bought it 50 years ago. Diesel powered, 6 way blade and 3 point hydraulic sys. in the rear. It runs and operates ok. Needs some work to be a good working machine. In my 60 years I have only ever seen one like it ( 6 way blade ) and that was in a photo. Has anyone ever come across one of these? I just don't know if it has any value other than a common old small farm dozer that needs tlc. thank you.