Noran Instruments 660B-1SPS Liquid Nitrogen Vacuum Insul Tank For Cooling Sensor

Noran Instruments 660B-1SPS Liquid Nitrogen Vacuum Insul Tank For Cooling Sensor.

Tank has a dent on one side, see photos. In good condition otherwise. Vacuum insulation around every side except the bottom, where the copper pipe conducts heat away from a sensor to keep it cool.