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![Toluene thermometer](https://coimages.sciencemuseumgroup.org.uk/371/971/medium_smg00083452.jpg)
Toluene thermometer, for temperature from -74 deg to 25 deg C arranged with ampulla to allow determination of boiling point of water for purposes of calibration
Toluene thermometer, for temperature from -74 deg to 25 deg C arranged with ampulla to allow determination of boiling point of water for purposes of calibration