I just bought a very cute clock at a thrift store. When I went to replace the battery, there was corrosion on the old one, so I tried cleaning if off. in the process, the cover to the works fell off, along with two of the plastic gears. I can’t figure out how to put it back together. The cover has indentations that I think hold of side of the gears, and the gears themselve have teeth on one side and a little pin on the other. Bummer.

I anyone know how to put this back together, I would very much appreciate some help.

thanks