I just was looking at the photos of it again and it is not threaded right. I thought something wasn't right in that photo but couldn't put my finger on it.
The thread path should go from the Spool to the Thread Guide (like it is now) then it goes to the Tensioner, to the hook that is right beside it, then up to the take up Lever, from there it goes to the Needle.
The way it is now you will be pulling your hair out trying to get it to sew.
The feed dogs are still kinda hard for me to see but I think they are the third generation feed dogs but it is hard to tell. I am going to email Alan and let him date it for us and send him some photos of it so he can tell us a bit more about the machine.
It is a very beautiful sewing machine and definitely a keeper in my book!!!!
Billy