Day 97
April 7, 2010Negretti & Zambra are one of the most important manufacturers of Barographs. Whilst they are not a clock, they do have a clock mechanism to drive the drum and record the atmospheric pressure. This is an 8 day model which for many years was the recording instrument for a Scottish coal mine. Many thanks to my good friend Tom who generously gave it to me to restore, keep and cherish.