Thanks for the info.
I am dreaming of ways that I could modernize these gauges with a red cylinder that would substitute for the fluid, rising and dropping accordingly.
Where might I find ‘the temperature gauge guy’ or his successor?
For synchronizing the carburetors on motorcycles this was done with vacuum gauges or ‘Carb Stix’, mercury filled tubes that would rise or fall with the vacuum being pulled thru the intake manifold. There’s a modern version of this gadget called a ‘Carbtune’ that uses metal rods in the clear plastic tubes, instead of mercury. I love challenges!
If I land one of these cars, not doubt, I’ll have lots more questions 😉.