Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England (1 of 9)
Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England (2 of 9)
Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England (3 of 9)
Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England (4 of 9)
Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England (5 of 9)
Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England (6 of 9)
Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England (7 of 9)
Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England (8 of 9)
Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England (9 of 9)
Richard Twort
Richard Twort is located in Weston-super-Mare, UK

Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England

REF: LA125110
Sold
Description
A commercial version of a combined barograph & thermograph by Negretti & Zambra. Set into a metal case with a glass panel at the front & circular grill to the side (allowing air to circulate around the bimetallic temperature coil). This instrument from the 1950’s is in working condition & the barograph movement comprises of the diaphragms with the separate section at the base which proved to be more accurate in tests – see extract from Negretti’s 1950 catalogue. The movement also has the pen arms engraved with ‘Thermograph’ & ‘Barograph’ & each linked to a gate suspension. The pen arms move freely past each other using ‘birdsmouth pen nibs. A nice working instrument.

declaration

Richard Twort has clarified that the Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England (LA125110) is genuinely of the period declared with the date/period of manufacture being c.1955

condition

Good condition for year.

additional info

Material:
-
Origin:
-
Date of Manufacture:
c.1955

delivery

Please contact Richard Twort for delivery of this item.

location

This Barograph & Thermograph Combined Instrument by Negretti & Zambra c.1955 England is located in Weston-super-Mare, UK

Email dealer to buy this item

Please note,
This dealer does not accept instant online payment for this item.
To buy this item please email the dealer using the enquiry form below.

Please enter your phone number removing the first ‘0’.
UK international phone number pattern: +44 xxxx xxx xxx

A selection of items from Richard Twort

Richard Twort has 0 items available.