I came across this machine today at a resale shop and didn't know if it was interesting or not. They are asking $125. It is in it's original box. It appears the piece that covers the bobbin is missing. The foot pedal was there. I hand turned the nob and the needle did go up and down. I just don't have a clue about what I'm doing but would hate to miss out. The decals seemed to be in pretty good shape with wear in places that would be normal with use. Advice???