This is the Cadillac Bunnell Telegraph Key they advertised as Box Sounding Relay and Steel Lever Key or Combination Set.  These were called KOB or Key On Board.  This rare machine is stamped Patented Feb 15, 1881; J.H. Bunnell & CO; New York.  It is in original hand made polished Mahogany wood base.  It has also been custom fitted with a steel nickel plated rim.  Notice the original sound relay spring, that is often missing.  We have also have the telegraph key spring (both will be removed for shipping).  Inside center box are two relays that when activated they resonate with a pure clicking sound.  It is in incredible condition for 100+ years.  Jesse Bunnell began the company and is considered a visionary with many new ideas on information communication with this rarely found machine.  It measures 13 x 5.50 wide x 4.5 inches high.  Professional collectors know and will find this an incredible highlight to any collection of information technology (IT) from the 1800s years ago.