Lot 53 - Negretti and Zambra Steam Gauge glass tube

Lot 53 - Negretti and Zambra Steam Gauge glass tube - Estimate 80-120 GBP

Charles Miller Auction Catalogue 7th November 2017 by Charles Miller Ltd - Issuu

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Antique Negretti and Zambra Pressure Gauge. England, Circa 1930

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VERY RARE BOURDON TUBE BAROTHERMOGRAPH BY NEGRETTI & ZAMBRA NO 2698 c1905 – Vavasseur Antiques

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Steam boiler service working pressure CLEAR Sight Glass Specifications OD: 27/32 (21.50 mm). Wall Thickness: 1/8 (3.18 mm) ± 1/64. Material

Steam Boiler Sight Gauge Glass(H.P.) 5/8 OD w/ 2 Gaskets, 3 to 16 Length

Chemical method of water flow measurement in open channels