One of a group of models and drawings of the Eddystone Lighthouses - third lighthouse (Smeaton's) - a model

Lichtenberg figure, perspex block showing ionised paths of corona discharge from two million volt Van de Graaff generator, 1954 - 1956

DNA-DNA double helix model, in a perspex case, made from over seven hundred coloured plastic balls

Medium duty planing machine in green perspex, by Cooper-Louden, with a Powermill 50 milling head by the Scottish Machine Tool Corporation

Brooch of ivory and silver with perspex double-glazing, inside are opal and rose-quartz beads: English, London, by Gunilla Treen, 1972

Bangle of black perspex with white stripe: English, London, by Nuala Jamison, December 1983

Brooch of perspex and mirror with pin attachment: English, London, by Pierre Degen, 1972

English Electric Canberra B5, cockpit section of a prototype, in display condition on a cradle with full instrumentation and equipment, flown in 1951

Battery-powered, transistorised portable mono reel-to-reel tape recorder, with grey and cream plastic casing, clear perspex cover and removable recessed microphone, by Philips, Holland, 1963

ISIS D-01 gyro gunsight production model for the A4 Skyhawk, mounted on perspex, 1960s

Model of the left hand side of the ICT Atlas Computer (Ferranti Atlas), 1/16 scale, consisting of two stories and containing cabinets and chairs, housed in wooden transport case, model made c. 1964

Model of the right hand side of the ICT Atlas Computer (Ferranti Atlas), 1/16 scale, consisting of two stories and containing cabinets and chairs, housed in wooden transport case, model made c. 1964

Telephone booth or kiosk having a blue metal stand supporting a glass, perspex and metal hood, with mount for a card operated payphone, branded for the Mercury Telephone Company, 1991

Mannheim slide rule, Rietz scale group, plastic-coated wood ruler and slide strip, perspex cursor, in two-part green case, by Faber-Castell, Germany, 1940s

Prototype Striker helmet with face mask and helmet-mounted display, for use in Eurofighter Typhoon, mounted for display on wooden head, BAE Systems

Bush Arena stereo music centre, model BS 3047, BSR SC11M ceramic cartridge with turnover stylus which can play 78's and Microgroove records, Dolby Cassette deck, stereo tuner and pair of speakers, by Rank Radio International, Portsmouth, turntable by Birmingham Sound Reproducers, Birmingham, 1980