Apologies if this question is not within the recognized scope of this forum. I am wondering what the below might be. Some kind of clock? ![what is it?](https://s23.postimg.org/62yb44j6j/what_is_it.png) EDIT - Sorry for not giving more information. It was on the wall in a room of a formerly KGB-run hospital in Kiev. As it is not readily recognizable, I guess it may have some medical purpose. The frame is from the highly recommended documentary 'The English Surgeon'.