Judy, you lucky gal! My grandmother died when I was six. I can remember seeing her treadle, always with the cover on, and I wasn't allowed to touch. It went when the house was cleared. I have been making up for the loss of that machine ever since.
You can get treadle belts online from Treadle Lady's website,
www.treadlelady.com
I'd love to pop round and clean up the machine with you, but distance is a problem, so I hope you enjoy my videos on Youtube (see the sticky thread at the beginning of this section for the links). Treat yourself to a tube of metal polish - I use Peek, made in England (hurrah hurrah) and available in the States. If you can't find it in the shops buy it online at
www.tripeek.com Your machine should clean up a treat. Don't forget to post photos when you've finished!