What is the back suppose to look like. I have a Linden Anniversary clock that the pendulum has stopped turning. I opened the back and found a white plastic object that look like it was to hold the gear in place. I remove the "pin" and the little black gear stated to turn but I don't know how the pendulum attaches to the gear. Every time I put the wire back in the slot the tab on the wire stops the gear from turning. ??????? If I had a picture I could probable fix it for Mom (93).