239.    $50

International Time Recording Co. shelf clock, ca. 1920.  The ITRC formed in 1900 from the Bundy Manufacturing Co.; it continued in business until 1924, when it became IBM.  This heavy, oak-cased clock is 30 inches tall; the door glass is newer, the paper dial as well.  The movement is as big as a Buick and sits on a heavy iron mount; the springs are very strong and require a huge winding key (included).  It is time-only, driven by both springs.  It must run for weeks.  Or longer. There must be something missing here, as I see no way to record anything.  These clocks usually allowed employees to “clock in” by getting a time stamp on their work card; they also were used to drive slave clocks (now these slave clocks are called “independent contractors”).  That’s about all I know about them; hopefully, you know more.  It is running strongly and appears to keep excellent time.  $50-$250.