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Vintage Acu-Rite refrigerator thermometer - fold up, likely provided as a promotional giveaway item
Marked by the John L. Cheney Instrument company. Red and black type on aluminum frame. Dial goes from -40 to 140 degrees. Does not appear to work any longer. Purely for collection/display.
Measures 3 1/4” square when flat, 3” tall when folded up. Has been folded open/up since the 60s. Will be shipped in current state.