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A brass cased aneroid barometer. The dial is signed ''Wilson Warden & Co Ltd, London and 'Mark II'. Millibars shown from 860 to 1050 with blued steel hand and red tipped set hand. The case rear is stamped 'Mark II'. Circa 1940.
Height/Width 5 " / 13 cms Depth 2 1/2 " / 6 cms.