566 Psychrometer Bendix Psychron. Engraved. Includes Case, Instructions and Ruler. Wet Bulb Hygrometer Analog Weather Friez Instrument Division Bendix Aviation L2A2-1
566 Psychrometer Bendix Psychron. Engraved. Includes Case, Instructions and Ruler. Wet Bulb Hygrometer Analog Weather Friez Instrument Division Bendix Aviation L2A2-1