One switch looks exactly like the switches we bought. The other (older, by the look of it) has a terminal on each side, as well as two holes in the back. There are two black wires going to the back of the switch. Then, one black wire runs from one terminal to a terminal on the second switch. The second switch also has a second black wire. How do I replace these? I don't see how I can duplicate the wiring, since three black wires are attached to the older switch. If you need to see a picture, let me know, and I can email you one.
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