Guess I really blew it - I had my Mom's old machine had used it for myself a number of years ago and it needed some work - new belts as the old ones had long since passed on plus who knew what else. I just did not want to deal with it as the folks I spoke with did not seem too interested in working on it - PLUS they wanted an arm and a leg. Looks very much like the one you got. Is it a mahogany cabinet? I even had the sales slip for it............
I sold it at a garage sale - but I still have a box with some attachments for it. If anyone is interested, they could PM me. I loved it when it worked - and the knee press was easy - at least it did not move as the foot one does!
I think the 3 in 1 oil is the best thing - that's what Mom used for it and I did too when I used it for mending while the belt was still good. The cabinet might need some light sanding and then Murphy's or Old English. Likely a lot of coats!!! With buffing in between.