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Title: Whirling hygrometer by Zeal, 1985 [Go to resource]
Description: Whirling hygrometer by Zeal, 1985. Mercury thermometers mounted in hardwood frame 203mm long, with folding handle. Cat.No. 17873 RH, range -15 degree C to +40 degree C License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1985 Source: Science Museum Creator: Zeal (maker) Identifier: 1985-745 Go to resource More Like this...
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