I picked up this clock about a year and a half ago. It has spent the last 14 months at the clock maker getting her back to running condition. This is a self winding clock from approximately 1910. These clocks hung in the PRR train stations and would self wind themselves every hour via a dry cell battery inside. These slave clocks were also connected to a master clock at a remote location. Once a day the master clock would send out signal to the slave clocks and they would automatically adjust the time so they were all in sync. This particular clock has the number 117 on the face. Station 117 was the Downingtown, Pa. station.
