File talk:Georgetown PowerPlant Museum 66.jpg
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What the device is[edit]
I am thinking that the two cylinders built on the side of the main device measure temperature and maybe some sort of differential pressure (not sure what it would be relative to). Looks pretty old, so maybe a historic "Pete's Plug" of a sort? Ivangiesen (talk) 02:12, 18 July 2022 (UTC)