telescope objective Lens
description: brass framed screw-on telescope objective with focal length approx.30" (760 mm).
creator: Unknown
date: 1800-2000
format: working diam.2.5" (66mm), height 10mm
format: metal, glass

specific gravity beads
description: 18 small glass beads, all but one numbered. In circular wooden box. Instructions for use on paper stuck inside lid. Likley to be the box of spirit bubbles' purhcased in 1833 by Prof William Knight.
creator: unknown
date: 1790 ?-1820 ?
format: box 3.5 inch x 1.25 inch
format: glass, wood, paper
coverage: unknown

Quarter-wave plate in wooden frame
description: Round quarte-wave plate in wooden square wooden frame with handle. Makers name and address on handle. On other side written on by hand "Quartz" and "1/4X". For use with Newton & Co. optical bench
creator: Newton & Co.
date: 1890-1900
format: frame: height 11mm, length 102mm, width 57mm plate: diam. 41mm
format: wood, glass
coverage: 3, Fleet Street, London, England

glass jar
description: a cylindrical glass laboratory jar with rimmed top and base
format: 205mm high x 60mm dia, rims 77mm
format: glass

wooden stand
description: a block of wood with a wooden rod coming out perpendicular
creator: unknown
date: 1900-1970
format: length 203mm, width 147mm, height 607mm
format: wood

newsletters
description: The Newsletter for the University of Aberdeen from 1982 until 1985 in an A4 paper box.
creator: University of Aberdeen
date: 1982-1985
format: A4
format: paper
coverage: Aberdeen, Scotland

spectrometer telescope
description: Brass telescope from spectrometer table. Objective can extend out.
creator: Cambridge Scientific Instrument Co. Ltd.
date: 1900-1925
format: diam. (objective) 45mm, length 330mm- 430mm
format: brass, glass
coverage: Cambridge, England

motor
description: an electric motor with three step pulley wheel. The mechanism is open and mounted on a wood plinth. The stator is electrically energised and the rotor is connected via two brass commutator brushes
format: 140mm x 140mm x 110mm high
format: wood, brass, copper, soft iron

Signaling Lamp
description: Metal cased lamp with power cables and bulb. Plate on side with engraving on it. With screw hole for stand so can be angled and a sight on top. Bulb had 10 V engraved on it.
creator: L.A.M.
date: 1935-1950
format: height 110mm, diam. 98mm
format: metal, glass
coverage: England

Photomultiplier
description: Mazda 9-stage photomultiplier type 27 M1. Side view, 11pin base, in original box with descriptive label. Lid label "Ser no. SP 285 660/19"
creator: Mazda
date: 1940-1960
format: Box 145 mm long x 70 mm square; device 90 mm long x 31 mm base diam
coverage: England