I was given two old cuckoo clocks. the woman said her parents got them in Germany in the 1950's. She was moving and had them since her parents died and was tired of dragging them around. One is very simple. A clock face and a single door for a cuckoo. The second is much fancier with doors for dancers to come out. I don't know that either clock is anything more than tourist trade stuff. I would sort of like to clean them up and see if they work, but I do not want to break them in the attempt. I have watched a video or two and looked up a cuckoo clock forum, but the assistance is really bare bones, actually skimpy. Anybody have any knowledge to share or places to direct me.