![ENEM Mother & Daughter Clocks](http://www.oldtimemachines.com/wp-content/uploads/2014/07/mother-and-daughter-e1405024834863-717x1024.jpg)
Electro Magnetic Dutch clock made in early 1920s. The ENEM clock is a Master Clock with a Slave Clock. The Dutch call the Master Clock, a Mother Clock, and the Slave Clock , a Daughter Clock. The Master Clock can control many slave clocks as, for example, in a school wher the Master is located in the office and the Slave in every class room.
~Neil Kunz