The Vintage Negretti Zambra Whirling Hygrometer is a charming piece of scientific collectable, originating from the United Kingdom. Made of glass and metal, this thermometer falls under the category of scientific instruments. Complete with its original box, this hygrometer is a nostalgic and functional addition to any collection or display. Perfect for those interested in the history and craftsmanship of vintage scientific tools, this item is sure to appeal to enthusiasts of rare and unique collectables. there are no instructions included
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