Hi, I just joined this group. I love quilting of all kinds. I just bought an Avanta with 'art & stitch., My friend and I are going for classes in Ca. and Phoenix, AZ. However, I also collect vintage sewing machines of all kinds. I have a problem. I have a 2 spool National Treadle machine. The bobbin case is missing the tension bar!!!!! Can anyone help me find a bobbin case for this machine? I am really looking forward to this message board. Happy Quilting, Jane in AZ