6/20/2021, 5:51:41
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (1 of 12)
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (2 of 12)
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (3 of 12)
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (4 of 12)
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (5 of 12)
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (6 of 12)
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (7 of 12)
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (8 of 12)
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (9 of 12)
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (10 of 12)
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (11 of 12)
Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (12 of 12)
Vavasseur Antiques
Vavasseur Antiques is located in Totnes, United Kingdom

Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918

REF: BG1469 / LA350441
£1850
€2145
$2620
Secure Payments By
Description
A fine five glass lacquered brass medium oak cased drum barograph recorder with barometer by Negretti & Zambra No 455 c1918 Antique barograph having finely executed lacquered brass mechanism, raised on four turned pillars over a half-plate bevelled chassis, comprising eight pressure sensing capsule stack with calibration knob over, finely finished pivots, polished recording arm, arrestor bar, ink station with contemporaneous bottle and dipper. Silvered and engraved brass open faced dial with conventional annotation calibrated from 28 to 31 inches of mercury. Bottom part marked with "Rd no. 428606" and the maker's name “Negretti & Zambra, London.” Blued steel hairspring and pointer. The recording drum, serially numbered "455," with sprung paper clip, spring loaded 'half turn' retaining nut. The movement contained within a separate drum form case, the top plate with winding square, stop and start lever, serial number "455 "and Negretti & Zambra "N&Z" logogram, and detailed as 7 day duration. Conical friction drive. Five bevelled glass case with oak frame having freize drawer under, the whole raised upon slab feet. Produced at a time when Negretti & Zambra were arguably at the height of their game, this is unquestionably of quality, with a full range of adjustments available, some of which were not available on less well-made or second quality instruments. The fit and finish of the component parts is very good indeed. Hitherto, Negretti & Zambra had imported and sold barographs made by Richard Frères, France but badged as "Negretti & Zambra." They also bought and re-sold instruments manufactured by Short & Mason. Here, the barograph movement is a Negretti & Zambra one but the dial and probably the movement are Short & Mason, licenced to Negretti & Zambra. The subject of a complete re-build, conservation and calibration, with attention having been paid to alignment, balance and pivots. The clockwork mechanism fully overhauled. The bespoke arm manufactured and replaced by us, the brass work remains original in all respects. The case disassembled, cleaned, re-lacquered, and reassembled. Small shell chip to inside top right end glass. Tested under laboratory conditions and now exhibiting very good sensitivity and progression - see performance chart. This is now an absolutely first class antique barograph in excellent condition.

measurements

Height:
8.5 in
Width:
14.5 in
Depth:
9 in

declaration

Vavasseur Antiques has clarified that the Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 (LA350441) is genuinely of the period declared with the date/period of manufacture being 1918

condition

Fully serviced and conserved, and in excellent working condition.

additional info

Material:
Oak
Origin:
English
Date of Manufacture:
1918

delivery

Please contact Vavasseur Antiques to discuss carriage options and obtain an estimate for despatch and insurance.

location

This Drum Barograph & Barometer by Negretti & Zambra No 455 c.1918 is located in Totnes, United Kingdom

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