Mechanical Time Clock MK III
The 3rd Mechanical Time clock that I have converted so far
Originally used in virtually every school in the country to sound the start and end of lesson bells, and then thrown out as soon as digital timers were invented.
This one however has been turned into a piece of Kinetic art to be appreciated. I do get these in to the workshop occasionally, so keep an eye out on the Starting Points pages if you want one yourself.