The auction has been closed.
This item was part of a past auction. It has been sold. The winning bid/final price is shown below.
This is an extremely interesting piece manufactured be Honeywell in the early 1900’s and was what we would know today as a thermostat. This temperature regulator was a thermostat with driven by a mechanical clock. This unit does appear as if it was never used but we cannot confirm this. Included is the original Honeywell branded winding key and installation instructions. The clock does wind set and tick, but it has not been tested for timing accuracy, therefore will be sold in as is condition.