Help me identify Grandfather movement. Customer called me to come and look at this clock. She said it has not run for at least 10 years. The case is huge compared to most. It's probably 8 foot tall, with a very large bonnet. I was surprised to see this movement inside. It's obviously a home made case with whatever this movement is. And so far, I don't know what it is. Haven't found any markings on it.