Hygrometer centre, square end, cast
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Hygrometer centre, clip and pin, turned
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Hygrometer dial, etched, 2 1/2" square, etching 2" o/d
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Hygrometer dial, 1790's style, 2 1/2" square, etching 2 1/8" o/d
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Hygrometer dial, Victorian 2 1/2" square, etching 2" o/d
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Threaded hygrometer ring, glazed, suits hole size 2 1/4"
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Threaded hygrometer ring, glazed, suits hole size 2 3/8"
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Threaded hygrometer ring, glazed, suits hole size 2 1/2"
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Threaded hygrometer ring, glazed,2 1/2" made to pattern
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The twisted beard of a wild oat which is used in the hygrometer of many old mercury wheel barometers. It does require a small piece of dried grass to be used as a 'pointer', the oat beard twists left and right according to dry or damp conditions and was a crude indicator of mositure in the air. (see book 'Care and Restoration of Barometers' for details of fitting if required.
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Complete hygrometer, aged and laquered, suits hole size 2 1/4"
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Complete hygrometer, aged and laquered, suits hole size 2 3/8"
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Complete hygrometer, aged and laquered, suits hole size 2 1/2"
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Complete hygrometer, unfinished, assembled but not silvered or laquered and without wild oat beard mounted, suits hole size 2 1/4"
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Complete hygrometer, unfinished, suits hole size 2 3/8"
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Complete hygrometer, unfinished, suits hole size 2 1/2"
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