Negretti & Zambra Antique Pocket Barrometer. The item "Negretti & Zambra Antique Pocket Barrometer" is in sale since Sunday, March 10, 2019. This item is in the category "Collectables\Scientific Collectables\Scientific Instruments\Barometers". The seller is "jackielondon" and is located in London. This item can be shipped worldwide.