[Reece]

I would first squirt some CRC electronics cleaner downward through the clock mechanism to flush out the dirt: hold it over the garbage can. Let dry, then light oil as suggested, with a toothpick, on each bearing surface.

You could have that speaker reconed, but if you are going to try to fix it, I highly recommend using fabric glue (craft store, fabric store). It's a bit thicker than Elmer's and you might want to thin it a little with water for making the repairs. Once the repairs are made and dry, thin the glue some more with water and paint the whole face of the cone with it. It's white but dries clear and remains flexible. You don't want it too thick at this step. It will reinforce the old paper and give it some strength to survive another 80 (!) years. I had a cone with no parts missing but it was full of little hairline cracks around the outer compliance. The paper was just getting brittle. Coating it with thinned fabric glue really strengthened it and it sounds great, takes volume the way it should with no buzzes.