Live auction - Lot 490

[Measuring]

English air-flow meter with rotating vane: "Airmeter N° 736".

London, Negretti & Zambra, late 19th-early 20th c


Hammer price: € 110

€ 100 / 150

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Lot description

Lacquered brass (or anodised copper?), 6 x 5,8 cm, with 8-bladed aluminium fan, 6,7 cm, the weighted base marked "Lowne's silver medal air meter".

Mahogany case with label "Correction for air meter N°. 736".

Silvered dial raised on 3 turned brass pillars and graduated 0-100 Feet, with subsidiary dials for HDS', THDS', 10THDS', 100THDS', and MILLNS'. The label in the lid suggests to "add 30 per minute to the observed air meter".

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Lot 490

English air-flow meter with rotating vane: "Airmeter N° 736".

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