It's belt driven? I found a picture of this model on the web, and it looks like the motor is internal. It has a rather neat design, simple art deco lines. I can't see the bobbin winder at all, but some machines have it on the side under the hand wheel. Have you managed to thread it up and made some attempts at stitching?
For the upper threading these models can be a bit of a basic model 15, but the general way about it; thread on the spool pin; aim towards the tensioner and look for thread guides on the way; hooks, loops, grooves.
Does the tensioner have two disks or is there some kind of fancy hooks, springs and loops? I'm not much help, but if there's round flat disks the thread goes between them.
Then aim for the take up lever, and then towards the needle. There's probably a couple of thread guides on the way. The needle goes in with the flat side a particular way, and it threads a particular way, and if you look at the last thread guide above the needle and the needle clamp it might give a clue to which way.
You can assume you need to apply oil several times and run the machine inbetween to get it running as nice as it should. I have had machines that took four days of oiling and test stitching to run smoothly again, and sometimes you just don't know until you get there.