Mercury total immersion nitrogen-filled thermometer
- maker:
- B. Black and Son Limited
Mercury total immersion nitrogen-filled thermometer, measuring in the range 0-100 degrees Fahrenheit, made by B. Black and Son, London, England, 1950-1989
Mercury total immersion nitrogen-filled thermometer, measuring in the range 0-100 degrees Fahrenheit, made by B. Black and Son, London, England, 1950-1989