Lord Kelvin, Scottish engineer, physicist and mathematician, 1852.

Lord Kelvin's sailing yacht 'Lalla Rookh', c 1860-1900.

Netherhall, home of Lord Kelvin, near Largs in Scotland, 1875-1907.

Lord Kelvin, Scottish engineer, mathematician and physicist, c 1900.

'Lord Kelvin and his compas', 1902.

Lord Kelvin and his compas, 1902.

Siemens obach galvanometer, 1888.

Lord Kelvin with his asistant, 1905.

Astatic galvanometer, 19th century.

Tangent galvanometer, 1873-1877.

Siemens galvanometer, c 1890.

Skaife's pistolgraph camera, 1858.