Brass locomotive bell, on teak base, from 5000th locomotive built by Baldwin locomotive works for the Philadelphia Railway, USA, 1880. Baldwin locomotive bell 1880
Model on teak base, illustrating action of control valve of Browns steam tiller steering gear 1911-1921
Ensign special tropical single lens reflex camera for plates or cutfilm negative size 3 1/4 x 4 1/4". Made of teak with brass fittings. Self capping focal plane shutter, speeds 1/15-1/1000sec and T. Lens panel has rising front. Fitted with an Aldis Butcher Anastigmat F.4.5 6" f.l. ith 5 single metal slides. Houghton-Butcher, c.1920 Ensign special tropical single lens reflex camera, c 1920 1915-1925
Sectioned model, scale 1:4, of a 8.5 inch John Kingston valve, displayed on the plating of a vessel, on wood stand, by the Science Museum Workshops, South Kensington, London, England, from drawings supplied by the Board of Admiralty, London, England, 1902-1903 Model of a John Kingston valve, made from drawings supplied by the Board of Admiralty 1902-1903
Adam's Minex de Luxe tropical reflex camera for negatives 5 x 4". Polished teak with brass fittings. With triple extension, 14". Rack and pinion focusing. With spring loaded plate. Fitted with a self capping focal plane shutter with speeds 1/8sec 1/1000 sec B. & T. Camera rising front and reversing back. Fitted with Taylor Taylor Hobson Cooke Aviar f.4.5 8.25" Series 11. With 2 double dark slides and case. c.1920 Adam's Minex de Luxe tropical reflex camera for negatives 5 x 4" 1920
Model, scale 1:18, of a 'Batil', an Arab trading vessel used on the Omani coast for pearl fishing, with two masts (raking forward) and lateen sails, by Deerjeebhoy Merwanjee, Bombay, Salsette Island, Maharashtra, India, 1842-1851. Deerjeebhoy Merwanjee built the model from a beam of the 'Cornwallis', which was built in 1788 of Malabar teak. Model of a 'Batil', Arab trading vessel 1842-1851
Rigged model of a Chinese trading junk with eye decorations on bow and tender boat suspended from stern, on mahogany stand, unsigned, China, 1900-1925 Model of Chinese trading junk 1900-1925
Sectional model, scale 1:4, of an early John Kingston-type valve, 4.5 in. diameter, for marine propulsion, c.1837, on wood base, by Science Museum Workshops, London, England, 1902-1903 Model of early John Kingston valve 1902-1903
Demonstration model for a self-pitching marine screw propeller with geared blades, designed and patented by John R. Coxon, Petworth, West Sussex, England and made by Woodcoxon Engineering Limited, Petworth, West Sussex, England, 1980. On teak display stand by Science Museum Workshops, South Kensington, London, England, 2002-2003. The propeller blade pitch was engineered so that if it would be impossible to replicate. This was in preparation for Woodcoxon to demonstrate to prospective national and international customers. Demonstration Model, for Self-Pitching Marine Screw Propeller 1980
A collection of items relating to Gandolfi Ltd., hand-made camera manufacturers, 1939: tripod to accompany Gandolfi `Precision' 5x7" camera, owned by Sir Kenneth Corfield (see 1999-5121) Tripod For Gandolfi `Precision' Camera 1939
A collection of items relating to Gandolfi Ltd., hand-made camera manufacturers, 1939: Gandolfi `Precision' 5x7" camera, owned by Sir Kenneth Corfield Gandolfi `Precision' Camera 1939
Double pole tumbler switches, two circular light switches fluted, detachable fronts. Made in England, circa 1900. Two switches on wooden base 1900
The Sanderson folding bellows field or stand camera for plates 4 3/4 x 6 1/2 and one darkslide. With double extension, tapered leather bellows, double swing and reversing back. Focusing by two rack and pinion mechanisms. Fitted with a Beck Steinheil 'Unofocal' patent Series 1 F.6.6 7.2" f.1 mounted in a Thornton Pickard roller-blind shutter. Polished teak with brass fittings. Houghton Ltd, c.1904. Sanderson Folding Bellows Field or Stand Camera and Darkslide. 1899-1909
'Casella improved' sympiesometer by L. Casella, London, England, 1871-1880. 'Casella improved' sympiesometer, 1871-1880 1871-1880
Self pitching three bladed propeller, first successful development, designed and patented by John R. Coxon, Petworth, West Sussex, England, 1977 and made by Woodcoxon Engineering Limited, Petworth, West Sussex, England, 1978-1979, tested and certified by Admiralty Marine Technology Establishment, Haslar, Gosport, Hampshire, England, 1978-1979. On teak display stand by Science Museum Workshops, South Kensington, London, England, 2000-2001. Self-Pitching Three-Bladed Propeller, First Successful Development 1978-1979
Tropical single lens reflex camera for plates or cutfilm 3 1/4 x 4 1/4. Possibly Graflex. Has reversing back and rising front movement with rack and pinion focusing. Fitted with a Carl Zeiss Tessar F.4.5 150mm lens. Self capping focal plane shutter with speeds 1/8-1/350sec Time. Fitted with synchronising device (later). Made of teak with aluminium fittings. c.1930 Tropical Single Lens Reflex Camera 1930
Wooden printing frame for negatives from 'Le Self Photo' camera with two transparencies of a lady. Transposing Printing Frame for Stereo Pictures
Chemistry laboratory bench on which the drug Acyclovir was developed. The basic drug was first turned into a chemical on this bench at the Wellcome Foundation Chemical Development Laboratories in Dartford, Made 1930’s Chemistry laboratory bench on which the drug Acyclovir was developed 1930-1939
Self pitching propeller, final two-bladed experimental development, designed and made by Christopher John Coxon and made by Woodcoxon Engineering Limited, Petworth, West Sussex, England and tested by Admiralty Marine Technology Establishment, Haslar, Gosport, Hampshire, England, 1982. On teak display stand by Science Museum Workshops, South Kensington, London, England, 2000-2001. This two-bladed self pitching propeller was originally designed by John R. Coxon, Petworth, West Sussex, England, 1977 and made by Woodcoxon Engineering Limited, Petworth, West Sussex, England, 1978-1979, tested and certified by Admiralty Marine Technology Establishment, Haslar, Gosport, Hampshire, England, 1978-1979. Self-Pitching Propeller, Final Two-Bladed Experimental Development 1982
Ross tropical reflex single lens reflex camera for plartes or cutfilm size 3 /14 x 4 1/4". Curtain aperture, speeds 1/16-1/800sec and time. Fitted with a Ross Xpres f/4.5 5.5" focal length. With reversing back. Teak with brass fittings with red leather bellows. With two metal double darkslides. c.1908 Ross Tropical Reflex Single Lens Reflex Camera circa 1908
Working model, scale 1:16, of Joseph Maudslay’s 1853 patent adjustable pitch screw propeller, fitted to vessel’s stern, on wood base, by Maudslay Sons and Field, Lambeth, London, England, 1853 Working model, of Joseph Maudslay’s 1853 patent adjustable pitch screw propeller 1853
Sectioned model, scale 1:4, of a 20 inch diameter screw-down type sea inlet valve, shown in vessel fittings on wood stand, from drawings supplied by H.M. Admiralty, by Science Museum Workshops, London, England, from drawings supplied by the Board of Admiralty, London, England, 1902-1903 Model of sea inlet-valve, from drawings supplied by the Board of Admiralty 1902-1903
Model, scale 1:12, of a telescopic funnel invented by R. Taplin of H.M. Dockyard, Woolwich in 1848, on teak wood base, unsigned, Woolwich, Kent, England, 1848 Model of a telescopic funnel, on teak wood base 1848
An example in brass of Andrew Peddie How's patent salinometer, capable of indicating gravity and temperature of water in marine boilers, patented by Andrew Peddie How in 1849, mounted on teak stand, unsigned, 1849-1850 Example of Andrew Peddie How's salinometer 1849-1850
Single lens reflex camera for 120 rollfilm 2 1/4 x 3 1/4 inch and case. Teak and bronzed metal. Aldis-Butcher Anastigmat F:4.25 inches f/4.5-32 No 151366. fabric focal plane shutter 25/40/50/75/125/250/500/T. Rack and pinion focusing, infinity to 4', ground glass focusing screen with collapsing hood, mirror removed by shutter release, optical frame finder, F: 6604. Houghton-Butcher. Ensign FP Roll Film Reflex Camera (Tropical Model) 1928
Mahogany wood transport box, for self-pitching three blade carbon fibre cyclic pitch propeller, prototype, designed and made by John Coxon, Pulborough, West Sussex, England, 2005-2006. The propeller was designed to be fitted to small motor vessel Volvo-Penta stern drive units. Originally, the propeller was designed for aircraft. Mahogany wood transport box, for Self-Pitching Carbon Fibre Cyclic Pitch Propeller, prototype 2005-2006
Long-range mercury and glycerine barometer by Negretti & Zambra, London, 1876. Long-range mercury and glycerine barometer, 1876 1876