Here is a nice Catalin/Bakelite display piece that measures temperature and humidity and shows a graphic where it is supposedly best to have the combination fall for good health. It is not tested for accuracy, though the thermometer shows about 70°F in a room that is about that, and the humidity needle moved up for a little bit when I breathed into the slots on the back, then came back down. It seems it is at least functioning generally as it should, but I make no promises as to accuracy. See photos. It is a nice made in USA piece. UPDATE 6/15/25: I got a question about dimensions, so have added some new photos, and noticed that the hands have moved since the original photos. That tells me it is functioning at least somewhat, though I don't know the accuracy.
Please ask any remaining questions before bidding or buying.
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