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Vacuum Gauge
Eugène Bourdon, c. 1860, measuring instrument, NG-MC-1062
Aneroid Barometer
Eugène Bourdon, c. 1860, barometer, NG-MC-1063
On display in room 0.13
Eugène Bourdon, c. 1860, measuring instrument, NG-MC-1062
Eugène Bourdon, c. 1860, barometer, NG-MC-1063
On display in room 0.13