great that you got it. Yes, the serial # on you rmachine is the one stamped into the slide. If you slide the slide toward you there should be (cross your fingers) a bullet shaped shuttle that moves front to back as you turn the handwheel.
your bobbins go in it.
you have a vibrating shuttle, fiddleback leaf tension machine. Those words may become important as you explore your machine.
Leonf on his gf's puter.