Richard Twort is located in Weston-super-Mare, UK
Rare 14 Day Barographs by Negretti & Zambra
Here are two extremely rare barographs by Negretti & Zambra. Known as the Jordan pattern, these instruments record barometric pressure over a two way system at the back of the chart with the nib engaging with the paper chart at the front.
Richard Twort has clarified that the Rare 14 Day Barographs by Negretti & Zambra (LA122760) is genuinely of the period declared with the date/period of manufacture being 20th Century
Please contact Richard Twort for delivery of this item.
This Rare 14 Day Barographs by Negretti & Zambra is located in Weston-super-Mare, UK