This old Western Union Naval Observatory Time clock was made by the Self Winding Clock Company of New York.It originally is made to run on 1 1/2 volt dry cell batteries but we have also added the ability for it run by regular plug in wall electricity

This old Western Union Naval Observatory Time clock was made by the Self Winding Clock Company of New York.It originally is made to run on 1 1/2 volt dry cell batteries but we have also added the ability for it run by regular plug in wall electricity and it measures 19" square.