I have a vintage FreeWestinghouse that I need a bobbin case for! Anyone know where I can look to find one? Sewing Shop told me they were discontinued about 30 yrs ago. The machine is over 70 yrs old and the bobbin case is frozen and can't be ajusted! I learned to sew on this machine and inherited from my mother who really didn't use it. Special memories and, after a good cleaning and oiling, works like the old days! LOL Please help!!