It takes a big slide plate. I have parts for it and am parting out a similar machine. Don't have that part though. It takes the big bobbins that some Kenmores use. They are still available. The bobbin case is different than Singer though. The light will clean up nicely with chrome polish. It is older than the White 77 and may be magnesium, metal, but can't be sure. Both of mine are magnesium, which doesn't hold paint very well. Your paint looks GOOD for the age of the machine so it may not be magnesium alloy.