The Negretti and Zambra barograph is a late 19th century instrument housed in a beautiful mahogany case, complete with an original name plate. With a 8 day working movement housed inside a brass drum and a 7 day chart, this barograph also features a barometer of which not all barographs from this company had, showing it is at the higher end of quality. Overall dimensions are 32cm length x 15cm width x 18cm height.
