Barometer calibrates pressure in inches of Mercury and Millibars. Dial is 4-1/2" in diameter; outside dimension 7.5"
Includes instructions and mounting hardware.
Hand Made and Hand Polished Solid Cast Brass Case with a Beveled Glass Lens. Pointer Calibrates Barometric Pressure in Inches of Mercury and Millibars. Opens and Closes Like a True Porthole with its Hinged Bezel and Half-Hinged Scuttle Clamps. Dimensions: 7.5"
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