Sample of cast steel from (L) iron, one of a group of specimens illustrating the manufacture of needles, hackles, combs, gills and springs

One of a collection of agricultural models - a condensing beam steam engine, made in 1840

Working model of high pressure steam engine, with overhead crank and brass cylinder, scale 1:8, made in 1850

Model of blowing engines at Wigan Coal and Iron Works, Kirkless Hall, near Wigan, the original designed by Robert Wilson of Nasmyth Wilson and Co. of Manchester, made in musuem workshop in 1876

Model of a patent Corliss engine, horizontal and non-condensing, scale 2 inches to 1 foot, made from designs by Messrs Douglas and Grant of Kirkcaldy, 1876

Decorative cast iron panel, openwork with children, Bower's oxydised iron, England, mid 19th century

Model of A. Betts Brown's patent steam accumulator combined with Brown's patent pumping engines, scale 1:12, made in the museum in c. 1880

Model of Richard's steam engine indicator and gear, made in the Museum workshop for attachment to the model of the Corliss engine, scale 2 inches to 1 foot

Crompton-Pochin arc lamp of the type used to light the streets of Edinburgh, 1896

Model of Chapman's patent link motion for converting reciprocating into circular motion, made in the workshop of the Museum

Electric motor with Siemens' H-armature, having rolling contact with the commutator instead of the usual brushes, made by William Forgan, Edinburgh, c. 1875

Circular slide rule, "The Mechanical Engineer", c. 1901

Thermometer, alcohol and mercury, recording maximum and minimum temperatures, invented by James Six of Canterbury in 1780, probably made by L. Casella, London, c. 1900

Cotton base of a filament, one of set of specimens illustrating manufacture of incandescent electric lamps, by Edison and Swan Electric Light Co., c. 1900

Lamp ready for exhausting, one of set of specimens illustrating manufacture of incandescent electric lamps, by Edison and Swan Electric Light Co., c. 1900

Lamp ready for exhausting, one of set of specimens illustrating manufacture of incandescent electric lamps, by Edison and Swan Electric Light Co., c. 1900