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Lot 1036
A Watson & Son Service brass microscope, 20th century, the polished steel frame holding three lense adjustable microscope, height 36 cm, together with a quantity of slides, a Regency style three light desk lamp, adjustable blue and white metal shade, height 48 cm, (a lot). (It is the buyer`s responsibility to ensure that this item is rewired before use).
Lot 72
A 19th century Art Nouveau paraffin/oil lamp, the reeded spiralled clear glass reservoir hand painted with flowers with registration no.40381 to base, raised on square column, with pink moulded and frosted glass shade, also a 19th century cast iron paraffin lamp with clear ridged spiralled glass reservoir and moulded shade, height including shades 64cm and 47cm respectively (2)
Lot 101
A compass and ships binnacle, the gimbal mounted compass with floating magnetic compass by Decker Arkas of Copenhagen with brass weather shield and adjustable lamp mounted on a circular teak wood binnacle which bears a plate for James Morton Ltd Sunderland, serial no.1925/6/08, flanked by two painted cast metal magnetic compensation brackets, lacking compensation balls, height of whole 145cm (illustrated)
Lot 19
A mahogany, iron and cast brass laboratory mirror galvanometer Leeds & Northrup & Co. Philadelphia, early 20th century The substantial oblong iron case enclosing a rectangular coil applied with a small circular mirror and suspended via wires around a magnet, behind cast brass glazed cover inscribed in relief LEEDS & NORTHRUP CO. SCIENTIFIC INSTRUMENTS PHILADELPHIA 67690, mounted onto mahogany panel with three electrical connection posts to front and trade label to underside, with cast iron triform stand on adjustable feet, 46cm high; with a reflecting galvanometer scale with translucent paper scale calibrated from 320-0-320 mounted within glazed mahogany surround and supported via sliding collars on two cylindrical uprights, the rectangular base applied with maker`s nameplate NADLER BRO`s & Co., Westminster and ivorine retailer`s plaque for PHILIP HARRIS & Co. Ltd and with light tube applied to a black painted metal shade to one side (light focussing lens and lamp lacking), 61cm wide. Provenance: Private collection Gloucestershire. The mirror galvanometer was devised in order to obtain the most accurate readings possible. By using reflected light against a separate scale to indicate deflection, errors that may come about due to the deflection having to operate a pointer with mass (albeit compensated) can be eradicated.
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