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Vintage Honeywell

jpm659er
jpm659er Member Posts: 19
in Thermostats and Controls
I ran across this awesome old pressure control with mercury switch recently.
Wondering the vintage?

Comments

  • bburd
    bburd Member Posts: 1,132
    That boiler is from the 1940s or so.
    —
    Bburd
    jpm659er
  • mattmia2
    mattmia2 Member Posts: 11,860
    The welded header is interesting, I kind of think that small arc welders weren't available to small shops until after wwii.
    jpm659erEdTheHeaterMan

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