djncarpediem Posted February 8, 2022 Share Posted February 8, 2022 I found a handful of these mixed in with a box of vintage automobile thermostats that I bought. The knob says "Alcohol Low High." Does anyone know if they are actually auto parts and what their use is? Thanks Link to comment Share on other sites More sharing options...
Mark Wetherbee Posted February 8, 2022 Share Posted February 8, 2022 In-line thermostat with the outlet for an accessory heater under the dash. Alcohol was used as an early antifreeze which is written on the adjuster. 3 Link to comment Share on other sites More sharing options...
djncarpediem Posted February 8, 2022 Author Share Posted February 8, 2022 Thanks Mark Wetherbee! 1 Link to comment Share on other sites More sharing options...
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